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Test Bank For Elementary Statistics, 3rd Edition

  • Statistics
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    Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Choose the answer below that best completes the following statement. A ________ is a number that describes a population. 1) A) summary B) statistic C) sample D) parameter 2) Choose the answer below that best completes the following statement. A _____________ is a number that describes a sample. 2) A) population B) statistic C) measurement D) parameter 3) In a recent poll, 64% of the respondents supported stricter gun laws. Is this an example of statistic or a parameter? 3) A) Statistic B) Parameter 4) In a small town, 84% of the residents, aged 16 or more years old, own a car. Is this an example of statistic or a parameter? 4) A) Statistic B) Parameter 5) Of the televisions offered at an electronics store, 42% cost less than $500.00. Is this an example of statistic or a parameter? 5) A) Statistic B) Parameter 6) In a survey of 1000 teenagers, 23% of them said they use tobacco products. Is this an example of statistic or a parameter? 6) A) Statistic B) Parameter 7) Which of the following sample types should you always regard as unreliable? 7) A) simple random samples B) voluntary response samples C) stratified samples D) cluster samples 8) A pollster randomly samples 145 Democrats, 154 Republicans and 19 Independents (all registered voters) in Metro City and asks each poll participant which mayoral candidate he or she prefers. Identify the kind of sample that the pollster is using. 8) A) stratified sample B) sample of convenience C) voluntary response sample D) cluster sample 1

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    9) A middle school student passes out leaflets to the adults at a school function. The leaflets ask the recipient to indicate whether they believe in anthropogenic global warming. The bottom of the leaflet indicates that the completed leaflet should be returned to the student. Identify the kind of sample that is being used. 9) A) sample of convenience B) systematic sample C) cluster sample D) stratified sample 10) By visiting homes door-to-door, a municipality surveys all the households in 149 randomly-selected neighborhoods to see how residents feel about a proposed property tax increase. Identify the type of sample that is being used. 10) A) systematic sample B) voluntary response sample C) stratified sample D) cluster sample 11) An electronics manufacturer test every 50 th cell phone to verify that it is functioning properly. Identify the kind of sample that is being used. 11) A) simple random sample B) systematic sample C) cluster sample D) stratified sample 12) The names of all 126 students in a professor's class are written on identical slips of paper, and the slips are placed into a large glass jar. Then, the professor selects 14 random slips from the jar. Identify the kind of sample that is being used. 12) A) systematic sample B) simple random sample C) cluster sample D) sample of convenience 13) Determine which of the following describes quantitative data. i). the name of a chemical sample ii). the mass of a chemical sample iii). the color of a chemical sample 13) A) ii only B) i and ii only C) i, ii, and iii D) i only 14) Determine which of the following describes quantitative data. i). the length of an object in feet ii). the speed of an object in meters per second iii). the number of objects that are blue 14) A) i and ii only B) iii only C) i only D) i, ii, and iii 15) Determine which of the following describes qualitative data. i). the volume of a shipping container, in gallons ii). the name of the material from which the container is made iii). the shape of the container 15) A) i, ii, and iii B) i and iii only C) ii and iii only D) i and ii only 2

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    16) Determine which of the following describes qualitative data. i). the make of the car with license plate number VNS-862 ii). the license plate number VNS-862 iii). the number of vehicles whose license plate number begins with "VNS" 16) A) i and ii only B) iii only C) neither i, nor ii, nor iii D) i only 17) Determine which of the following describes nominal data. i. My favorite days of the week are Friday, Saturday, and Tuesday. ii. My favorite day of the week is Friday, my second-favorite is Saturday, and third-favorite is Tuesday. 17) A) both i and ii B) neither i nor ii C) i only D) ii only 18) Determine which of the following describes nominal data. i. Michaelangelo's sells small, medium, large, and jumbo pizzas. ii. Michaelangelo's most-requested toppings are pepperoni, black olives, and mushrooms. 18) A) neither i nor ii B) both i and ii C) i only D) ii only 19) Determine which of the following describes ordinal data. i. In the horse race, Betty's Girl won, Mr. Ed placed, and Wabash showed. ii. In the horse race, I bet on Betty's Girl to win, Mr. Ed to place, and Wabash to show. 19) A) i only B) both i and ii C) neither i nor ii D) ii only 20) Determine which of the following describes ordinal data. i. My best friends are Georgia, Amithaba, and Raphael. ii. My favorite numbers are 2, 7 and 13. 20) A) both i and ii B) neither i nor ii C) i only D) ii only 21) Which one of the following data are discrete? 21) A) the average preseason ranking of the University of Connecticut's women's basketball team over the past 10 years B) the pre-season ranking of Duke University's men's basketball team C) the height of the tallest player on Duke University's men's basketball team D) the average height of players on the University of Connecticut's women's basketball team 22) Which one of the following data are discrete? 22) A) the speed of the boat's propeller, in revolutions per minute B) the number of crew members on the boat C) the latitude and longitude of the boat's port of departure D) the latitude and longitude of a boat at sea 3

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    23) Which one of the following data are continuous? 23) A) the average height of a sample of trees B) the rankings of the trees, from most numerous to least numerous C) the number of representatives of each species in the park D) the number of species of trees in a park 24) Which one of the following data are continuous? 24) A) the number of musicians performing in the MP3 file B) the time remaining for an MP3 music download C) the number of times the file has been downloaded D) all of these represent continuous data 25) When rolling two six-sided dice, your total roll ranges from 2 (double ones) to 12 (double sixes).Characterize the nature of the roll total. 25) A) qualitative and discrete B) qualitative and continuous C) quantitative and continuous D) quantitative and discrete 26) When experimental units are people, they are sometimes called ________________. 26) A) personnel B) subjects C) topics D) human units 27) In an experiment, the ______________ is what is measured on each experimental unit. 27) A) subject B) treatment C) category D) outcome 28) Which of the following is the best description of a randomized experiment? 28) A) an experiment in which the treatments are assigned randomly to experimental units B) an experiment in which the investigators are chosen at random C) an experiment in which the outcomes are random D) an experiment in which the experimental units are selected at random 29) In a randomized experiment, if there are large differences in outcomes among the treatment groups, we can conclude that the differences are due to _____________________. 29) A) deliberate data manipulation B) the treatments C) experimental error D) random luck 4

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    30) Which of the following is the best description of a double-blind experiment? 30) A) an experiment in which neither the investigators nor the subjects know the others' names B) an experiment in which both the investigators and the subjects are hidden from the others' views C) an experiment in which neither the investigators nor the subjects know how the treatments have been assigned D) an experiment in which the subjects are blindfolded so they cannot see which treatment is applied to them 31) In an experiment, subjects are put into two categories according to sex, and then each subject is randomly assigned a treatment . This is an example of... 31) A) randomized blocking B) observational studies C) gender bias D) confounding 32) A(n) _______________ makes it difficult to determine whether an experimental outcome is due to the applied treatment. 32) A) perplexer B) uncooperative subject C) error D) confounder 33) An experiment that tends to overestimate or underestimate the true value is said to be ______________. 33) A) un-randomized B) biased C) flagrant D) randomized 34) People are reluctant to admit to behavior that may reflect negatively on them. This can lead to ... 34) A) sampling bias B) voluntary response bias C) social acceptability bias D) hurt feelings 35) The question... "Do you favor a higher standard of living, even though it produces unclean air and water?" ... is an example of ... 35) A) sampling bias B) random sampling C) leading question bias D) framing 36) You ask your friends who they plan to vote for in the next congressional election. Based on their responses, you conclude that the candidate you favor cannot lose! This is most likely an example of ... 36) A) sampling bias B) self-interest bias C) voluntary response bias D) randomized sampling 5

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    37) A small brew pub sent out questionnaires to a simple random sample of 250 customers asking whether they would like the brewery to include an imperial stout in their regular offerings. Of the 250 questionnaires, 12 were returned and 10 of those were in favor of including the stout. Specify the type of bias involved. 37) A) Voluntary response B) Self-interest C) Sampling D) Nonresponse 38) A sign in a grocery store claims that 92% of their customers believe them to have the freshest produce in the city. Specify the type of bias involved. 38) A) Leading question B) Self-interest C) Voluntary response D) Social acceptability 39) A radio talk show invites people to call in and state whether or not they think that sexual harassment in the work place is a common problem. 39) A) Social acceptability B) Sampling C) Voluntary response D) Self-interest 6

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    Answer Key Testname: UNTITLED1 1) D 2) B 3) A 4) B 5) B 6) A 7) B 8) A 9) A 10) D 11) B 12) B 13) A 14) D 15) C 16) A 17) C 18) D 19) B 20) B 21) B 22) B 23) A 24) B 25) D 26) B 27) D 28) A 29) B 30) C 31) A 32) D 33) B 34) C 35) C 36) A 37) D 38) B 39) C 7

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    Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The following bar graph presents the average amount a certain family spent, in dollars, on various food categories in a recent year. On which food category was the most money spent? 1) A) Fruits and vegetables B) Cereals and baked goods C) Meat poultry, fish, eggs D) Dairy products 2) The following pie chart presents the percentages of fish caught in each of four ratings categories. Match this pie chart with its corresponding bar graph. 2) 1

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    A) B) C) D) 2

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    3) The following pie chart presents the percentages of fish caught in each of four ratings categories. Match this pie chart with its corresponding Pareto chart. 3) A) B) 3

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    C) D) 4) Following is a pie chart that presents the percentages spent by a certain household on its five largest annual expenditures. What percentage of the money spent was spent on food, housing, and utilities? 4) A) 50 % B) 52.6 % C) 61.9 % D) 65 % 5) The following frequency distribution presents the frequency of passenger vehicles that pass through a certain intersection from 8:00 AM to 9:00 AM on a particular day. Vehicle Type Frequency Motorcycle 5 Sedan 75 5) 4

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    SUV 70 Truck 35 Construct a frequency bar graph for the data. A) B) C) D) 5

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    6) The following frequency distribution presents the frequency of passenger vehicles that pass through a certain intersection from 8:00 AM to 9:00 AM on a particular day. Vehicle Type Frequency Motorcycle 15 Sedan 80 SUV 88 Truck 34 What is the relative frequency of the Motorcyle category? 6) A) 0.17 B) 15 C) 0.069 D) 15 % 7) The following frequency distribution presents the frequency of passenger vehicles that pass through a certain intersection from 8:00 AM to 9:00 AM on a particular day. Vehicle Type Frequency Motorcycle 7 Sedan 63 SUV 84 Truck 30 Construct a relative frequency distribution for the data. 7) A) Vehicle Type Relative Frequency Motorcycle 0.083 Sedan 0.75 SUV 1 Truck 0.357 B) Vehicle Type Relative Frequency Motorcycle 0.038 Sedan 0.342 SUV 0.457 Truck 0.163 C) Vehicle Type Relative Frequency Motorcycle 0.038 % Sedan 0.342 % SUV 0.457 % Truck 0.163 % D) Vehicle Type Relative Frequency Motorcycle 0.07 Sedan 0.63 SUV 0.84 Truck 0.3 8) The following frequency distribution presents the frequency of passenger vehicles that pass through a certain intersection from 8:00 AM to 9:00 AM on a particular day. Vehicle Type Frequency Motorcycle 9 Sedan 54 SUV 27 8) 6

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    Truck 53 Construct a relative frequency bar graph for the data. A) B) C) D) 7

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    9) The following frequency distribution presents the frequency of passenger vehicles that pass through a certain intersection from 8:00 AM to 9:00 AM on a particular day. Vehicle Type Frequency Motorcycle 7 Sedan 22 SUV 58 Truck 67 Construct a relative frequency Pareto chart for the data. 9) A) B) C) 8

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    D) 10) The following frequency distribution presents the frequency of passenger vehicles that pass through a certain intersection from 8:00 AM to 9:00 AM on a particular day. Vehicle Type Frequency Motorcycle 12 Sedan 54 SUV 26 Truck 64 Construct a pie chart for the data. 10) A) B) C) D) 9

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    11) Classify the histogram as skewed to the left, skewed to the right, or approximately symmetric. 11) A) skewed to the left B) skewed to the right C) approximately symmetric 12) Classify the histogram as unimodal or bimodal. 12) A) unimodal B) bimodal 13) One hundred students are shown an eight-digit number on a piece of cardboard for three seconds and are asked to then recite the number from memory. The process is repeated until the student accurately recites the entire number from memory. The following histogram presents the number of trials it took each student to memorize the number. How many students memorized the number in three trials or less? 13) A) 2 B) 81 C) 19 D) 24 10

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    14) The following frequency distribution presents the weights in pounds (lb) of a sample of visitors to a health clinic. Weight (lb) Frequency 100 - 103 2 104 - 107 1 108 - 111 4 112 - 115 4 116 - 119 10 120 - 123 9 124 - 127 4 128 - 131 1 What is the class width? 14) A) 4 B) 3 C) 32 D) 5 15) The following frequency distribution presents the weights in pounds (lb) of a sample of visitors to a health clinic. Construct a frequency histogram. 15) A) 11

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    B) C) D) 12

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    16) The following frequency distribution presents the weights in pounds (lb) of a sample of visitors to a health clinic. Construct a relative frequency histogram. 16) A) B) 13

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    C) D) 17) The following table presents the purchase totals (in dollars) of a random sample of gasoline purchases at a convenience store. Construct a frequency distribution using a class width of 10, and using 0 as the lower class limit for the first class. 17) 14

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    A) B) C) D) 18) The following table presents the purchase totals (in dollars) of a random sample of gasoline purchases at a convenience store. Construct a relative frequency distribution using a class width of 10, and using 0 as the lower class limit for the first class. 18) 15

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    A) B) C) 16

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    D) 19) The following table presents the purchase totals (in dollars) of a random sample of gasoline purchases at a convenience store. Construct a frequency histogram using a class width of 10, and using 0 as the lower class limit for the first class. 19) A) 17

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    B) C) D) 20) The following table presents the purchase totals (in dollars) of a random sample of gasoline purchases at a convenience store. Construct a relative frequency histogram using a class width of 10, and using 0 as the lower class limit for the first class. 20) 18

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    A) B) C) 19

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    D) 21) Thirty households were surveyed for the number of televisions in each home. Following are the results. Construct a frequency histogram. 21) A) B) 20

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    C) D) 22) Thirty households were surveyed for the number of televisions in each home. Following are the results. Construct a relative frequency histogram. 22) A) 21

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    B) C) D) 22

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    23) A sample of 200 high school students were asked how many hours per week they spend watching television. The following frequency distribution presents the results. Construct a frequency polygon for the frequency distribution. 23) A) B) 23

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