# MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 Final Exam Review MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A researcher for an airline interviews all of the passengers on five randomly selected flights. What sampling technique is used? A) systematic B) convenience C) cluster D) stratified E) random 1) 2) Classify the number of seats in a movie theater as qualitative data or quantitative data. A) quantitative data B) qualitative data 2) 3) Classify the following random variable according to whether it is discrete or continuous. The number of cups of coffee sold in a cafeteria during lunch A) continuous B) discrete 3) 4) Classify the following random variable according to whether it is discrete or continuous. The high temperature in degrees Fahrenheit on July 4th in Juneau, Alaska A) discrete B) continuous 4) 5) The results of a survey about a recent judicial appointment are given in the table below. 5) Response Frequency Strongly Favor 19 Favor 28 Neutral 10 Oppose 25 Strongly Oppose 118 Construct a relative frequency distribution. 1

2 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. The bar graph shows the number of tickets sold each week by the garden club for their annual flower show. 6) During which week was the most number of tickets sold? A) Week 1 B) Week 4 C) Week 2 D) Week 5 6) 7) During which week was the fewest number of tickets sold? A) Week 2 B) Week 5 C) Week 6 D) Week 4 7) 8) How many tickets were sold during week 4? A) 40 tickets B) 46 tickets C) 59 tickets D) 19 tickets 8) 9) The Highway Patrol, using radar, checked the speeds (in mph) of 30 passing motorists at a checkpoint. The results are listed below. Construct a frequency bar graph and a relative frequency bar graph. 9) ) A random sample of 30 high school students is selected. Each student is asked how much time he or she spent watching television during the previous week. The following times (in hours) are obtained: 10) 6, 14, 8, 11, 8, 6, 8, 7, 5, 11, 9, 7, 7, 6, 9, 8, 5, 5, 10, 7, 5, 7, 14, 9, 6, 10, 6, 9, 8, 7 2

3 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 11) The class width is the difference between A) The upper class limit and the lower class limit of a class B) The high and the low data values C) The largest frequency and the smallest frequency D) Two successive lower class limits 11) 12) The heights (in inches) of 30 adult males are listed below. Construct a stem-and-leaf chart for the data. 12) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 13) Describe the shape of the distribution. 13) A) uniform B) skewed to the left C) skewed to the right D) symmetric 14) The high temperatures in degrees Celsius each day over a three week period were as follows: 17, 18, 20, 22, 21, 19, 16, 15, 18, 20, 21, 21, 22, 21, 19, 20, 19, 17, 16, 16, 17. Compute the mean, median, and mode. 14) 3

4 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 15) 15) For the distribution drawn here, identify the mean, median, and mode. A) A = mode, B = median, C = mean B) A = median, B = mode, C = mean C) A = mean, B = mode, C = median D) A = mode, B = mean, C = median 16) If the graph of a distribution of data shows that the graph is skewed to the right then the A) Mean < Median B) Mean Median C) No conclusion about the relative position of the mean and the median can be made D) Mean > Median 16) 17) In a random sample, 10 students were asked to compute the distance they travel one way to school to the nearest tenth of a mile. The data is listed below. Compute the range, sample standard deviation and sample variance of the data. 17) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 18) A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 270 with a standard deviation of 30 on a standardized test. Assuming a bell-shaped distribution, where would approximately 95% of the students score? A) between 180 and 360 B) between 210 and 330 C) below 180 or above 360 D) below 210 or above ) 19) If nothing is known about the shape of a distribution, what percentage of the observations fall within 3 standard deviations of the mean? A) at most 11% B) at least 89% C) approximately 0.3% D) approximately 99.7% 19) 4

6 25) Construct a scatter diagram for the given data. Determine whether there is a positive linear correlation, negative linear correlation, or no linear correlation. 25) x y MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 26) A traffic officer is compiling information about the relationship between the hour or the day and the speed over the limit at which the motorist is ticketed. He computes a correlation coefficient of What does this tell the officer? A) There is a weak positive linear correlation. B) There is insufficient evidence to make any conclusions about the relationship between the variables. C) There is a moderate negative linear correlation. D) There is a moderate positive linear correlation. 26) 27) Calculate the correlation coefficient, r, for the data below. 27) x y A) B) C) D) ) Find the equation of the regression line for the given data. 28) x y A) y^ = x B) y^ = 1.885x C) y^ = 0.758x D) y^ = x ) Which of the following cannot be a probability? A) B) 2 3 C) 0 D) ) 30) Identify the sample space of the probability experiment: determining the children's gender for a family of three children (Use B for boy and G for girl.) 30) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 31) In terms of probability, a(n) - is any process with uncertain results that can be repeated. A) Outcome B) Experiment C) Event D) Sample space 31) 6

7 32) In 1999 the stock market took big swings up and down. A survey of 1000 adult investors asked how often they tracked their portfolio. The table shows the investor responses. What is the probability that an adult investor tracks his or her portfolio daily? How frequently? Response Daily 235 Weekly 278 Monthly 292 Couple times a year 136 Don't track A) 1000 ; B) ; C) ; D) ; ) 33) You are dealt one card from a standard 52-card deck. Find the probability of being dealt an ace or a 9. 5 A) B) 10 C) 13 2 D) ) 34) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an ace or a heart A) B) C) D) ) 35) You are dealt one card from a 52-card deck. Find the probability that you are not dealt a diamond. A) 2 B) 3 4 C) D) ) 36) Fill in the blank. The of an event A is the event that A does not occur. A) union B) intersection C) Venn diagram D) complement 36) Find the value of the combination. 37) 10 C 4 A) 2520 B) 1440 C) 151,200 D) ) 38) Consider the discrete probability distribution to the right when answering the following question. Find the probability that x exceeds 4. 38) x P(x) 0.22? A) 0.83 B) 0.61 C) 0.17 D) ) Calculate the mean for the discrete probability distribution shown here. 39) X P(X)

9 46) The graph of a normal curve is given. Use the graph to identify the value of μ and σ. 46) A) μ = 137, σ = 6 B) μ = 18, σ = 137 C) μ = 137, σ = 18 D) μ = 6, σ = 137 A random variable X is normally distributed with μ = 60. Convert the value of X to a Z-score, if the standard deviation is as given. 47) X = 66; σ = 4 47) A) 1.5 B) 15 C) 6 D) 4 48) Find the area under the standard normal curve between z = 1.5 and z = 2.5. A) B) C) D) ) 49) For a standard normal curve, find the z-score that separates the bottom 70% from the top 30%. A) 0.98 B) 0.53 C) 0.47 D) ) Determine the area under the standard normal curve that lies between: 50) z = -2 and z = -0.5 A) 69.15% B) 30.85% C) 2.28% D) 28.57% 50) 51) Use the standard normal distribution to find P(-2.50 < z < 1.50). A) B) C) D) ) 52) The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 3.0 minutes. A).3551 B).1915 C).2674 D) ) 53) The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.0 minutes and a standard deviation of 1 minute. Find the cut-off time which 75.8% of the college students exceed when trying to find a parking spot in the library parking lot. A) 3.3 B) 3.7 C) 3.5 D) ) 54) The ages of five randomly chosen cars in the parking lot are determined to be 7, 9, 3, 4, and 6 years old. If we consider this sample of 5 in groups of 3, what is the probability of the true mean being more than 6 years? A) 0.6 B) 0.5 C) 0.1 D) ) 9

10 55) The amount of money collected by a snack bar at a large university has been recorded daily for the past five years. Records indicate that the mean daily amount collected is \$2800 and the standard deviation is \$500. The distribution is skewed to the right due to several high volume days (including football game days). Suppose that 100 days were randomly selected from the five years and the average amount collected from those days was recorded. Which of the following describes the sampling distribution of the sample mean? A) normally distributed with a mean of \$2800 and a standard deviation of \$50 B) skewed to the right with a mean of \$2800 and a standard deviation of \$500 C) normally distributed with a mean of \$280 and a standard deviation of \$50 D) normally distributed with a mean of \$2800 and a standard deviation of \$500 55) 56) The average score of all golfers for a particular course has a mean of 68 and a standard deviation of 5. Suppose 100 golfers played the course today. Find the probability that the average score of the 100 golfers exceeded 69. A).3707 B).4772 C).1293 D) ) 57) A national caterer determined that 37% of the people who sampled their food said that it was delicious. If the 144 people at the Valley Ridge Nursing Home are given the same food, and asked by tables what the deliciousness of the food, what is the standard deviation of the sampling distribution of p^? A).23 B) 0.04 C) 0.48 D) ) Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that for the afternoon shift 5% of all welds done will be substandard. If Smith checks 300 of the 7500 welds completed that shift, what is the probability that he will find between 10 and 20 substandard welds? A) B) C) D) ) 58) 59) A point estimate is the value of a that estimates the value of a. A) Random variable; statistic B) Random variable; parameter C) Statistic; parameter D) Parameter; statistic 59) 60) In a sample of 10 randomly selected women, it was found that their mean height was 63.4 inches. From previous studies, it is assumed that the standard deviation, σ, is 2.4. Construct the 95% confidence interval for the population mean. A) (61.9, 64.9) B) (59.7, 66.5) C) (60.8, 65.4) D) (58.1, 67.3) 60) 61) The critical value of a distribution is the value of A) The area of the tail region of the distribution 61) B)za/2 σ n C) The parameter D) za/2 62) A random sample of 50 students has a test score average with a standard deviation of Find the margin of error if c = A) 0.36 B) 1.54 C) 2.54 D) ) 10

11 63) A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she desires to be 95% confident that the true mean is within 3 ounces of the sample mean? The standard deviation of the birth weights is known to be 9 ounces. A) 34 B) 5 C) 6 D) 35 63) Determine the sample size needed to estimate μ for the given situation. 64) E = 3, σ2 = 60, (1 - α) =.95 A) 1537 B) 26 C) 77 D) 19 64) 65) Find the critical t-value that corresponds to c = 0.95 and n = 16. A) B) C) D) ) 66) Construct a 95% confidence interval for the population mean, μ. Assume the population has a normal distribution. A sample of 20 college students had mean annual earnings of \$3120 with a standard deviation of \$677. A) (\$2135, \$2567) B) (\$1324, \$1567) C) (\$2657, \$2891) D) (\$2803, \$3437) 66) 67) A survey of 600 non-fatal accidents showed that 251 involved the use of a cell phone. Find a point estimate for p, the population proportion of accidents that involved the use of a cell phone. A) B) C) D) ) 68) An article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the results of a poll, showed that 46% would like more discussion about the family's financial situation, 37% would like to talk about school, and 30% would like to talk about religion. These and other percentages were based on a national sampling of 513 teenagers. Estimate the proportion of all teenagers who want more family discussions about school. Use a 90% confidence level. A).63 ±.035 B).37 ±.002 C).37 ±.035 D).63 ± ) 69) The dean of a major university claims that the mean time for students to earn a Master's degree is at most 5.5 years. Write the null and alternative hypotheses. 69) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 70) If we reject the null hypothesis when the null hypothesis is true, then we have made a A) Type I error B) Type II error C) Type α error D) Correct decision 70) 71) The mean score for all NBA games during a particular season was less than 108 points per game. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis? A) There is not sufficient evidence to reject the claim μ < 108. B) There is sufficient evidence to reject the claim μ < 108. C) There is sufficient evidence to support the claim μ < 108. D) There is not sufficient evidence to support the claim μ < ) 11

12 72) Suppose you want to test the claim that μ 3.5. Given a sample size of n = 45 and a level of significance of α = 0.10, when should you reject H0? A) Reject H0 if the standardized test statistic is greater than or less than B) Reject H0 if the standardized test statistic is greater than 1.96 or less than C) Reject H0 if the standardized test statistic is greater than or less than D) Reject H0 if the standardized test statistic is greater than 2.33 or less than ) 73) You wish to test the claim that μ 39 at a level of significance of α = 0.05 and are given sample statistics n = 35, x = 38.1, and σ = 2.7. Compute the value of the test statistic. Round your answer to two decimal places. A) B) C) D) ) 74) Suppose you are using α = 0.01 to test the claim that μ 50 using a P-value. You are given the sample statistics n = 40, x = 51.8, and σ = 4.3. Find the P-value. A) B) C) D) ) 75) Determine the critical value, z0, to test the claim about the population proportion p given n = 48 and p^ = Use α = A) B) C) D) ) 76) Given H0: μ 18, H1: μ < 18, and P = Do you reject or fail to reject H0 at the 0.05 level of significance? A) fail to reject H0 B) not sufficient information to decide C) reject H0 76) 77) Data sets A and B are dependent. Find d. 77) A B Assume that the paired data came from a population that is normally distributed. A) B) C) 0.89 D) ) Construct a 99% confidence interval for data sets A and B. Data sets A and B are dependent. 78) A B Assume that the paired data came from a population that is normally distributed. A) ( , ) B) ( , 5.761) C) (-4.502, 2.622) D) ( , ) 12

13 79) Find the standardized test statistic, t, to test the claim that μ1 = μ2. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. 79) n1 = 14 n2 = 12 x1 = 3 x2 = 4 s1 = 2.5 s2 = 2.8 A) B) C) D) ) Find the standardized test statistic t for a sample with n = 10, x = 15, s = 1.3, and α = 0.05 if H0: μ Round your answer to three decimal places. A) B) C) D) ) 13

14 Answer Key Testname: MAT1127 FINAL REVIEW EXAM 1) C 2) A 3) B 4) B 5) Response Frequency Relative Frequency Strongly Favor Favor Neutral Oppose Strongly Oppose ) B 7) A 8) C 9) 10) 11) D 12) ) C 14) mean = 18.81, median = 19, mode = 21 15) A 16) D 17) range = 4.4, s = 1.8, s2 =

15 Answer Key Testname: MAT1127 FINAL REVIEW EXAM 18) B 19) B 20) C 21) A 22) C 23) predictor variable: hours studying; response variable: grades on the test 24) 19, 21, 28, 31, 36 25) There appears to be a positive linear correlation. 26) A 27) B 28) A 29) D 30) (BBB),(BBG),(BGB),(GBB),(BGG),(GBG),(GGB),(GGG) 31) B 32) A 33) D 34) B 35) B 36) D 37) D 38) C 39) μ = x p(x) = 2(.2) + 7(.3) + 11(.3) + 16(.2) = 9 40) B 41) A 42) B 43) B 44) D 15

16 Answer Key Testname: MAT1127 FINAL REVIEW EXAM 45) C 46) A 47) A 48) B 49) B 50) D 51) C 52) D 53) B 54) D 55) A 56) D 57) B 58) B 59) C 60) A 61) D 62) C 63) D 64) B 65) A 66) D 67) C 68) C 69) H0: μ = 5.5, H1: μ < ) A 71) C 72) C 73) D 74) A 75) D 76) A 77) B 78) C 79) D 80) A 16

### 1) The table lists the smoking habits of a group of college students. Answer: 0.218

FINAL EXAM REVIEW Name ) The table lists the smoking habits of a group of college students. Sex Non-smoker Regular Smoker Heavy Smoker Total Man 5 52 5 92 Woman 8 2 2 220 Total 22 2 If a student is chosen

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. C) (a) 2. (b) 1.5. (c) 0.5-2.

Stats: Test 1 Review Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Use the given frequency distribution to find the (a) class width. (b) class

### Practice#1(chapter1,2) Name

Practice#1(chapter1,2) Name Solve the problem. 1) The average age of the students in a statistics class is 22 years. Does this statement describe descriptive or inferential statistics? A) inferential statistics

### Math 140 (4,5,6) Sample Exam II Fall 2011

Math 140 (4,5,6) Sample Exam II Fall 2011 Provide an appropriate response. 1) In a sample of 10 randomly selected employees, it was found that their mean height was 63.4 inches. From previous studies,

### Multiple Choice Questions

Multiple Choice Questions 1. A fast- food restaurant chain with 700 outlets in the United States describes the geographic location of its restaurants with the accompanying table of percentages. A restaurant

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. A) ±1.88 B) ±1.645 C) ±1.96 D) ±2.

Ch. 6 Confidence Intervals 6.1 Confidence Intervals for the Mean (Large Samples) 1 Find a Critical Value 1) Find the critical value zc that corresponds to a 94% confidence level. A) ±1.88 B) ±1.645 C)

### Review #2. Statistics

Review #2 Statistics Find the mean of the given probability distribution. 1) x P(x) 0 0.19 1 0.37 2 0.16 3 0.26 4 0.02 A) 1.64 B) 1.45 C) 1.55 D) 1.74 2) The number of golf balls ordered by customers of

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Open book and note Calculator OK Multiple Choice 1 point each MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the mean for the given sample data.

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Ch. 4 Discrete Probability Distributions 4.1 Probability Distributions 1 Decide if a Random Variable is Discrete or Continuous 1) State whether the variable is discrete or continuous. The number of cups

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The government of a town needs to determine if the city's residents will support the

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the value of the permutation.

Probability & Statistics Midterm REVIEW Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the range for the group of data items. 1) 13, 19,

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. C) (a) 3 (b) 51

Chapter 2- Problems to look at Use the given frequency distribution to find the (a) class width. (b) class midpoints of the first class. (c) class boundaries of the first class. 1) Height (in inches) 1)

### Determine whether the data are qualitative or quantitative. 8) the colors of automobiles on a used car lot Answer: qualitative

Name Score: Math 227 Review Exam 1 Chapter 2& Fall 2011 ********************************************************************************************************************** SHORT ANSWER. Show work on

### Classify the data as either discrete or continuous. 2) An athlete runs 100 meters in 10.5 seconds. 2) A) Discrete B) Continuous

Chapter 2 Overview Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Classify as categorical or qualitative data. 1) A survey of autos parked in

### Practice Final Exam Math 115 Name

Practice Final Exam Math 115 Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Answer the question. 1) An employee at the local ice cream parlor

### p1^ = 0.18 p2^ = 0.12 A) 0.150 B) 0.387 C) 0.300 D) 0.188 3) n 1 = 570 n 2 = 1992 x 1 = 143 x 2 = 550 A) 0.270 B) 0.541 C) 0.520 D) 0.

Practice for chapter 9 and 10 Disclaimer: the actual exam does not mirror this. This is meant for practicing questions only. The actual exam in not multiple choice. Find the number of successes x suggested

### Versions 1a Page 1 of 17

Note to Students: This practice exam is intended to give you an idea of the type of questions the instructor asks and the approximate length of the exam. It does NOT indicate the exact questions or the

### 6. Decide which method of data collection you would use to collect data for the study (observational study, experiment, simulation, or survey):

MATH 1040 REVIEW (EXAM I) Chapter 1 1. For the studies described, identify the population, sample, population parameters, and sample statistics: a) The Gallup Organization conducted a poll of 1003 Americans

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

STT315 Practice Ch 5-7 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) The length of time a traffic signal stays green (nicknamed

### CHAPTER 11 SECTION 2: INTRODUCTION TO HYPOTHESIS TESTING

CHAPTER 11 SECTION 2: INTRODUCTION TO HYPOTHESIS TESTING MULTIPLE CHOICE 56. In testing the hypotheses H 0 : µ = 50 vs. H 1 : µ 50, the following information is known: n = 64, = 53.5, and σ = 10. The standardized

### Business Statistics. Successful completion of Introductory and/or Intermediate Algebra courses is recommended before taking Business Statistics.

Business Course Text Bowerman, Bruce L., Richard T. O'Connell, J. B. Orris, and Dawn C. Porter. Essentials of Business, 2nd edition, McGraw-Hill/Irwin, 2008, ISBN: 978-0-07-331988-9. Required Computing

### The number of phone calls to the attendance office of a high school on any given school day A) continuous B) discrete

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) State whether the variable is discrete or continuous.

### SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

Practice for Chapter 9 and 10 The acutal exam differs. SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Find the number of successes x suggested by the

### Statistics I for QBIC. Contents and Objectives. Chapters 1 7. Revised: August 2013

Statistics I for QBIC Text Book: Biostatistics, 10 th edition, by Daniel & Cross Contents and Objectives Chapters 1 7 Revised: August 2013 Chapter 1: Nature of Statistics (sections 1.1-1.6) Objectives

### STT 315 Practice Problems I for Sections

STT 35 Practice Problems I for Sections. - 3.7. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. ) Parking at a university has become

### Find the median temperature. A) 33 F B) 59 F C) 51 F D) 67 F Answer: B

Review for TEST 2 STA 2023 FALL 2013 Name Find the mean of the data summarized in the given frequency distribution. 1) A company had 80 employees whose salaries are summarized in the frequency distribution

### MATH 103/GRACEY PRACTICE EXAM/CHAPTERS 2-3. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MATH 3/GRACEY PRACTICE EXAM/CHAPTERS 2-3 Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) The frequency distribution

### Chapter 5 Review The Normal Probability and Standardization

Chapter 5 Review The Normal Probability and Standardization MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) Approximately

### Practice Problems and Exams

Practice Problems and Exams 1 The Islamic University of Gaza Faculty of Commerce Department of Economics and Political Sciences An Introduction to Statistics Course (ECOE 1302) Spring Semester 2009-2010

### Course Text. Required Computing Software. Course Description. Course Objectives. StraighterLine. Business Statistics

Course Text Business Statistics Lind, Douglas A., Marchal, William A. and Samuel A. Wathen. Basic Statistics for Business and Economics, 7th edition, McGraw-Hill/Irwin, 2010, ISBN: 9780077384470 [This

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

STATISTICS/GRACEY PRACTICE TEST/EXAM 2 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Identify the given random variable as being discrete or continuous.

### 13.2 Measures of Central Tendency

13.2 Measures of Central Tendency Measures of Central Tendency For a given set of numbers, it may be desirable to have a single number to serve as a kind of representative value around which all the numbers

### Age Percentage not covered

the study as an observational study or a designed experiment. 1) A political pollster reports that his candidate has a 10% lead in the polls with 10% undecided. A) experiment B) Observational study 2)

### FINAL EXAM REVIEW - Fa 13

FINAL EXAM REVIEW - Fa 13 Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. 1) The temperatures of eight different plastic spheres. 2) The sample

### ACTM State Exam-Statistics

ACTM State Exam-Statistics For the 25 multiple-choice questions, make your answer choice and record it on the answer sheet provided. Once you have completed that section of the test, proceed to the tie-breaker

### Technology Step-by-Step Using StatCrunch

Technology Step-by-Step Using StatCrunch Section 1.3 Simple Random Sampling 1. Select Data, highlight Simulate Data, then highlight Discrete Uniform. 2. Fill in the following window with the appropriate

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. C) (a) 2 (b) 1

Unit 2 Review Name Use the given frequency distribution to find the (a) class width. (b) class midpoints of the first class. (c) class boundaries of the first class. 1) Miles (per day) 1-2 9 3-4 22 5-6

### Math 240 Practice Exam 1 Note: Show all work whenever possible for full credit. You may leave your answers in terms of fractions.

Name: (Solution on last page)... Math 240 Practice Exam 1 Note: Show all work whenever possible for full credit. You may leave your answers in terms of fractions. Formulas: 2 2 x x n x x s x x n f x f

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Ch. 2 Methods for Describing Sets of Data 2.1 Describing Qualitative Data 1 Identify Classes/Compute Class Frequencies/Relative Frequencies/Percentages 1) In an eye color study, 25 out of 50 people in

### STT 315 Practice Problems II for Sections

STT 315 Practice Problems II for Sections 4.1-4.8 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) Classify the following random

### Exam # 1 STAT The number of people from the state of Alaska الاسكا) (ولاية who voted for a Republican

King Abdulaziz University Faculty of Sciences Statistics Department Name: ID No: Exam # 1 STAT 11 First Term 149-143H Section: 6 You have 6 questions in 7 pages. You have 1 minutes to solve the exam. Please

### Math Chapter 2 review

Math 116 - Chapter 2 review Name Provide an appropriate response. 1) Suppose that a data set has a minimum value of 28 and a max of 73 and that you want 5 classes. Explain how to find the class width for

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question

Stats: Test Review Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question Provide an appropriate response. ) Given H0: p 0% and Ha: p < 0%, determine

### AP STATISTICS (Warm-Up Exercises)

AP STATISTICS (Warm-Up Exercises) 1. Describe the distribution of ages in a city: 2. Graph a box plot on your calculator for the following test scores: {90, 80, 96, 54, 80, 95, 100, 75, 87, 62, 65, 85,

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam Name 1) A recent report stated ʺBased on a sample of 90 truck drivers, there is evidence to indicate that, on average, independent truck drivers earn more than company -hired truck drivers.ʺ Does

### Chapter 2: Exploring Data with Graphs and Numerical Summaries. Graphical Measures- Graphs are used to describe the shape of a data set.

Page 1 of 16 Chapter 2: Exploring Data with Graphs and Numerical Summaries Graphical Measures- Graphs are used to describe the shape of a data set. Section 1: Types of Variables In general, variable can

### Statistics 151 Practice Midterm 1 Mike Kowalski

Statistics 151 Practice Midterm 1 Mike Kowalski Statistics 151 Practice Midterm 1 Multiple Choice (50 minutes) Instructions: 1. This is a closed book exam. 2. You may use the STAT 151 formula sheets and

### M 225 Test 1 A Name (1 point) SHOW YOUR WORK FOR FULL CREDIT!

M 225 Test 1 A Name (1 point) SHOW YOUR WORK FOR FULL CREDIT! Problem Max. Points Your Points 1-14 14 15 3 16 5 17 4 18 4 19 11 20 9 21 8 22 16 Total 75 1 Multiple choice questions (1 point each) 1. Look

### MAT 12O ELEMENTARY STATISTICS I

LAGUARDIA COMMUNITY COLLEGE CITY UNIVERSITY OF NEW YORK DEPARTMENT OF MATHEMATICS, ENGINEERING, AND COMPUTER SCIENCE MAT 12O ELEMENTARY STATISTICS I 3 Lecture Hours, 1 Lab Hour, 3 Credits Pre-Requisite:

### Format: 20 True or False (1 pts each), 30 Multiple Choice (2 pts each), 4 Open Ended (5 pts each).

AP Statistics Review for Midterm Format: 20 True or False (1 pts each), 30 Multiple Choice (2 pts each), 4 Open Ended (5 pts each). These are some main topics you should know: True or False & Multiple

### Mathematics. Probability and Statistics Curriculum Guide. Revised 2010

Mathematics Probability and Statistics Curriculum Guide Revised 2010 This page is intentionally left blank. Introduction The Mathematics Curriculum Guide serves as a guide for teachers when planning instruction

### Descriptive Statistics. Frequency Distributions and Their Graphs 2.1. Frequency Distributions. Chapter 2

Chapter Descriptive Statistics.1 Frequency Distributions and Their Graphs Frequency Distributions A frequency distribution is a table that shows classes or intervals of data with a count of the number

### II. DISTRIBUTIONS distribution normal distribution. standard scores

Appendix D Basic Measurement And Statistics The following information was developed by Steven Rothke, PhD, Department of Psychology, Rehabilitation Institute of Chicago (RIC) and expanded by Mary F. Schmidt,

### Inferential Statistics

Inferential Statistics Sampling and the normal distribution Z-scores Confidence levels and intervals Hypothesis testing Commonly used statistical methods Inferential Statistics Descriptive statistics are

### E205 Final: Version B

Name: Class: Date: E205 Final: Version B Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The owner of a local nightclub has recently surveyed a random

### Curriculum Map Statistics and Probability Honors (348) Saugus High School Saugus Public Schools 2009-2010

Curriculum Map Statistics and Probability Honors (348) Saugus High School Saugus Public Schools 2009-2010 Week 1 Week 2 14.0 Students organize and describe distributions of data by using a number of different

### Contemporary Mathematics Online Math 1030 Sample Exam I Chapters 12-14 No Time Limit No Scratch Paper Calculator Allowed: Scientific

Contemporary Mathematics Online Math 1030 Sample Exam I Chapters 12-14 No Time Limit No Scratch Paper Calculator Allowed: Scientific Name: The point value of each problem is in the left-hand margin. You

### Exploratory data analysis (Chapter 2) Fall 2011

Exploratory data analysis (Chapter 2) Fall 2011 Data Examples Example 1: Survey Data 1 Data collected from a Stat 371 class in Fall 2005 2 They answered questions about their: gender, major, year in school,

### MBA 611 STATISTICS AND QUANTITATIVE METHODS

MBA 611 STATISTICS AND QUANTITATIVE METHODS Part I. Review of Basic Statistics (Chapters 1-11) A. Introduction (Chapter 1) Uncertainty: Decisions are often based on incomplete information from uncertain

### Variables. Exploratory Data Analysis

Exploratory Data Analysis Exploratory Data Analysis involves both graphical displays of data and numerical summaries of data. A common situation is for a data set to be represented as a matrix. There is

### STAT 350 Practice Final Exam Solution (Spring 2015)

PART 1: Multiple Choice Questions: 1) A study was conducted to compare five different training programs for improving endurance. Forty subjects were randomly divided into five groups of eight subjects

### Business Statistics, 9e (Groebner/Shannon/Fry) Chapter 9 Introduction to Hypothesis Testing

Business Statistics, 9e (Groebner/Shannon/Fry) Chapter 9 Introduction to Hypothesis Testing 1) Hypothesis testing and confidence interval estimation are essentially two totally different statistical procedures

### 1. What is the critical value for this 95% confidence interval? CV = z.025 = invnorm(0.025) = 1.96

1 Final Review 2 Review 2.1 CI 1-propZint Scenario 1 A TV manufacturer claims in its warranty brochure that in the past not more than 10 percent of its TV sets needed any repair during the first two years

### How to Conduct a Hypothesis Test

How to Conduct a Hypothesis Test The idea of hypothesis testing is relatively straightforward. In various studies we observe certain events. We must ask, is the event due to chance alone, or is there some

### Sample Term Test 2A. 1. A variable X has a distribution which is described by the density curve shown below:

Sample Term Test 2A 1. A variable X has a distribution which is described by the density curve shown below: What proportion of values of X fall between 1 and 6? (A) 0.550 (B) 0.575 (C) 0.600 (D) 0.625

### Chapter 7 Review. Confidence Intervals. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Chapter 7 Review Confidence Intervals MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Suppose that you wish to obtain a confidence interval for

### Name: Date: Use the following to answer questions 2-3:

Name: Date: 1. A study is conducted on students taking a statistics class. Several variables are recorded in the survey. Identify each variable as categorical or quantitative. A) Type of car the student

### Unit 21 Student s t Distribution in Hypotheses Testing

Unit 21 Student s t Distribution in Hypotheses Testing Objectives: To understand the difference between the standard normal distribution and the Student's t distributions To understand the difference between

### Case l: Watchdog, Inc: Keeping hospitals honest

Case l: Watchdog, Inc: Keeping hospitals honest Insurance companies hire independent firms like Watchdog, Inc to review their hospital bills. They pay Watchdog a percentage of the overcharges it finds.

### Chapter 3 - Practice Problems 1

Chapter 3 - Practice Problems 1 SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1) The two most frequently used measures

### STATISTICS 8: CHAPTERS 7 TO 10, SAMPLE MULTIPLE CHOICE QUESTIONS

STATISTICS 8: CHAPTERS 7 TO 10, SAMPLE MULTIPLE CHOICE QUESTIONS 1. If two events (both with probability greater than 0) are mutually exclusive, then: A. They also must be independent. B. They also could

### Mind on Statistics. Chapter 13

Mind on Statistics Chapter 13 Sections 13.1-13.2 1. Which statement is not true about hypothesis tests? A. Hypothesis tests are only valid when the sample is representative of the population for the question

### Mind on Statistics. Chapter 2

Mind on Statistics Chapter 2 Sections 2.1 2.3 1. Tallies and cross-tabulations are used to summarize which of these variable types? A. Quantitative B. Mathematical C. Continuous D. Categorical 2. The table

### MAT 118 DEPARTMENTAL FINAL EXAMINATION (written part) REVIEW. Ch 1-3. One problem similar to the problems below will be included in the final

MAT 118 DEPARTMENTAL FINAL EXAMINATION (written part) REVIEW Ch 1-3 One problem similar to the problems below will be included in the final 1.This table presents the price distribution of shoe styles offered

### 1) What is the probability that the random variable has a value greater than 2? A) 0.750 B) 0.625 C) 0.875 D) 0.700

Practice for Chapter 6 & 7 Math 227 This is merely an aid to help you study. The actual exam is not multiple choice nor is it limited to these types of questions. Using the following uniform density curve,

### Chapter 7 - Practice Problems 2

Chapter 7 - Practice Problems 2 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the requested value. 1) A researcher for a car insurance company

### DesCartes (Combined) Subject: Mathematics Goal: Data Analysis, Statistics, and Probability

DesCartes (Combined) Subject: Mathematics Goal: Data Analysis, Statistics, and Probability RIT Score Range: Below 171 Below 171 171-180 Data Analysis and Statistics Data Analysis and Statistics Solves

### Math 147 Elementary Probability/Statistics I Student Name: Additional Exercises on Chapter 2: Organizing and Graphing Data

Math 147 Elementary Probability/Statistics I Student Name: Additional Exercises on Chapter 2: Organizing and Graphing Data 1) Scott Tarnowski owns a pet grooming shop. His prices for grooming dogs are

### Interpreting Data in Normal Distributions

Interpreting Data in Normal Distributions This curve is kind of a big deal. It shows the distribution of a set of test scores, the results of rolling a die a million times, the heights of people on Earth,

### ACTM Regional Statistics Multiple Choice Questions

ACTM Regional Statistics Multiple Choice Questions This exam includes 2 multiple- choice items and three constructed- response items that may be used as tie- breakers. Record your answer to each of the

### The Chi-Square Test. STAT E-50 Introduction to Statistics

STAT -50 Introduction to Statistics The Chi-Square Test The Chi-square test is a nonparametric test that is used to compare experimental results with theoretical models. That is, we will be comparing observed

### AP Statistics: Syllabus 3

AP Statistics: Syllabus 3 Scoring Components SC1 The course provides instruction in exploring data. 4 SC2 The course provides instruction in sampling. 5 SC3 The course provides instruction in experimentation.

### Data Analysis Tools. Tools for Summarizing Data

Data Analysis Tools This section of the notes is meant to introduce you to many of the tools that are provided by Excel under the Tools/Data Analysis menu item. If your computer does not have that tool

### MTH 140 Statistics Videos

MTH 140 Statistics Videos Chapter 1 Picturing Distributions with Graphs Individuals and Variables Categorical Variables: Pie Charts and Bar Graphs Categorical Variables: Pie Charts and Bar Graphs Quantitative

### Regression Analysis: A Complete Example

Regression Analysis: A Complete Example This section works out an example that includes all the topics we have discussed so far in this chapter. A complete example of regression analysis. PhotoDisc, Inc./Getty

### Chapter 1: Exploring Data

Chapter 1: Exploring Data Chapter 1 Review 1. As part of survey of college students a researcher is interested in the variable class standing. She records a 1 if the student is a freshman, a 2 if the student

### The Big 50 Revision Guidelines for S1

The Big 50 Revision Guidelines for S1 If you can understand all of these you ll do very well 1. Know what is meant by a statistical model and the Modelling cycle of continuous refinement 2. Understand

### Descriptive Statistics

Descriptive Statistics Primer Descriptive statistics Central tendency Variation Relative position Relationships Calculating descriptive statistics Descriptive Statistics Purpose to describe or summarize

### e = random error, assumed to be normally distributed with mean 0 and standard deviation σ

1 Linear Regression 1.1 Simple Linear Regression Model The linear regression model is applied if we want to model a numeric response variable and its dependency on at least one numeric factor variable.

### Chapter 4 & 5 practice set. The actual exam is not multiple choice nor does it contain like questions.

Chapter 4 & 5 practice set. The actual exam is not multiple choice nor does it contain like questions. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the mean for the given sample data. 1) Bill kept track of the number of hours he spent

### INTRODUCTORY STATISTICS

INTRODUCTORY STATISTICS Questions 290 Field Statistics Target Audience Science Students Outline Target Level First or Second-year Undergraduate Topics Introduction to Statistics Descriptive Statistics

### Chapter 8 Introduction to Hypothesis Testing

Chapter 8 Student Lecture Notes 8-1 Chapter 8 Introduction to Hypothesis Testing Fall 26 Fundamentals of Business Statistics 1 Chapter Goals After completing this chapter, you should be able to: Formulate

### An Introduction to Statistics Course (ECOE 1302) Spring Semester 2011 Chapter 10- TWO-SAMPLE TESTS

The Islamic University of Gaza Faculty of Commerce Department of Economics and Political Sciences An Introduction to Statistics Course (ECOE 130) Spring Semester 011 Chapter 10- TWO-SAMPLE TESTS Practice

### COURSE OUTLINE. Course Number Course Title Credits MAT201 Probability and Statistics for Science and Engineering 4. Co- or Pre-requisite

COURSE OUTLINE Course Number Course Title Credits MAT201 Probability and Statistics for Science and Engineering 4 Hours: Lecture/Lab/Other 4 Lecture Co- or Pre-requisite MAT151 or MAT149 with a minimum

### Regression. Name: Class: Date: Multiple Choice Identify the choice that best completes the statement or answers the question.

Class: Date: Regression Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Given the least squares regression line y8 = 5 2x: a. the relationship between

### 1) Write the following as an algebraic expression using x as the variable: Triple a number subtracted from the number

1) Write the following as an algebraic expression using x as the variable: Triple a number subtracted from the number A. 3(x - x) B. x 3 x C. 3x - x D. x - 3x 2) Write the following as an algebraic expression

### Northumberland Knowledge

Northumberland Knowledge Know Guide How to Analyse Data - November 2012 - This page has been left blank 2 About this guide The Know Guides are a suite of documents that provide useful information about