Test Bank For Elementary Statistics, 3rd Edition

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ExamName___________________________________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)summaryB)statisticC)sampleD)parameter2)Choose the answer below that best completes the following statement.A _____________ is a number that describes a sample.2)A)populationB)statisticC)measurementD)parameter3)In a recent poll, 64% of the respondents supported stricter gun laws. Is this an exampleof statistic or a parameter?3)A)StatisticB)Parameter4)In a small town, 84% of the residents, aged 16 or more years old, own a car. Is this anexample of statistic or a parameter?4)A)StatisticB)Parameter5)Of the televisions offered at an electronics store, 42% cost less than $500.00. Is this anexample of statistic or a parameter?5)A)StatisticB)Parameter6)In a survey of 1000 teenagers, 23% of them said they use tobacco products. Is this anexample of statistic or a parameter?6)A)StatisticB)Parameter7)Which of the following sample types should you always regard as unreliable?7)A)simple random samplesB)voluntary response samplesC)stratified samplesD)cluster samples8)A pollster randomly samples145Democrats,154Republicans and19Independents (allregistered voters) in Metro City and asks each poll participant which mayoral candidatehe or she prefers. Identify the kind of sample that the pollster is using.8)A)stratified sampleB)sample of convenienceC)voluntary response sampleD)cluster sample1

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9)A middle school student passes out leaflets to the adults at a school function. The leafletsask the recipient to indicate whether they believe in anthropogenic global warming. Thebottom of the leaflet indicates that the completed leaflet should be returned to thestudent. Identify the kind of sample that is being used.9)A)sample of convenienceB)systematic sampleC)cluster sampleD)stratified sample10)By visiting homes door-to-door, a municipality surveys all the households in149randomly-selected neighborhoods to see how residents feel about a proposed propertytax increase. Identify the type of sample that is being used.10)A)systematic sampleB)voluntary response sampleC)stratified sampleD)cluster sample11)An electronics manufacturer test every50thcell phone to verify that it is functioningproperly. Identify the kind of sample that is being used.11)A)simple random sampleB)systematic sampleC)cluster sampleD)stratified sample12)The names of all126students in a professor's class are written on identical slips ofpaper, and the slips are placed into a large glass jar. Then, the professor selects14random slips from the jar. Identify the kind of sample that is being used.12)A)systematic sampleB)simple random sampleC)cluster sampleD)sample of convenience13)Determine which of the following describes quantitative data.i). the name of a chemical sampleii). the mass of a chemical sampleiii). the color of a chemical sample13)A)ii onlyB)i and ii onlyC)i, ii, and iiiD)i only14)Determine which of the following describes quantitative data.i). the length of an object in feetii). the speed of an object in meters per secondiii). the number of objects that are blue14)A)i and ii onlyB)iii onlyC)i onlyD)i, ii, and iii15)Determine which of the following describes qualitative data.i). the volume of a shipping container, in gallonsii). the name of the material from which the container is madeiii). the shape of the container15)A)i, ii, and iiiB)i and iii onlyC)ii and iii onlyD)i and ii only2

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16)Determine which of the following describes qualitative data.i). the make of the car with license plate number VNS-862ii). the license plate number VNS-862iii). the number of vehicles whose license plate number begins with "VNS"16)A)i and ii onlyB)iii onlyC)neither i, nor ii, nor iiiD)i only17)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, andthird-favorite is Tuesday.17)A)both i and iiB)neither i nor iiC)i onlyD)ii only18)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 iiB)both i and iiC)i onlyD)ii only19)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 onlyB)both i and iiC)neither i nor iiD)ii only20)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 iiB)neither i nor iiC)i onlyD)ii only21)Which one of the following data are discrete?21)A)the average preseason ranking of the University of Connecticut's women'sbasketball team over the past 10 yearsB)the pre-season ranking of Duke University's men's basketball teamC)the height of the tallest player on Duke University's men's basketball teamD)the average height of players on the University of Connecticut's women's basketballteam22)Which one of the following data are discrete?22)A)the speed of the boat's propeller, in revolutions per minuteB)the number of crew members on the boatC)the latitude and longitude of the boat's port of departureD)the latitude and longitude of a boat at sea3

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23)Which one of the following data are continuous?23)A)the average height of a sample of treesB)the rankings of the trees, from most numerous to least numerousC)the number of representatives of each species in the parkD)the number of species of trees in a park24)Which one of the following data are continuous?24)A)the number of musicians performing in the MP3 fileB)the time remaining for an MP3 music downloadC)the number of times the file has been downloadedD)all of these represent continuous data25)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 discreteB)qualitative and continuousC)quantitative and continuousD)quantitative and discrete26)When experimental units are people, they are sometimes called ________________.26)A)personnelB)subjectsC)topicsD)human units27)In an experiment, the ______________ is what is measured on each experimental unit.27)A)subjectB)treatmentC)categoryD)outcome28)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 unitsB)an experiment in which the investigators are chosen at randomC)an experiment in which the outcomes are randomD)an experiment in which the experimental units are selected at random29)In a randomized experiment, if there are large differences in outcomes among thetreatment groups, we can conclude that the differences are due to_____________________.29)A)deliberate data manipulationB)the treatmentsC)experimental errorD)random luck4

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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'namesB)an experiment in which both the investigators and the subjects are hidden from theothers' viewsC)an experiment in which neither the investigators nor the subjects know how thetreatments have been assignedD)an experiment in which the subjects are blindfolded so they cannot see whichtreatment is applied to them31)In an experiment, subjects are put into two categories according to sex, and then eachsubject is randomly assigned a treatment . This is an example of...31)A)randomized blockingB)observational studiesC)gender biasD)confounding32)A(n) _______________ makes it difficult to determine whether an experimentaloutcome is due to the applied treatment.32)A)perplexerB)uncooperative subjectC)errorD)confounder33)An experiment that tends to overestimate or underestimate the true value is said to be______________.33)A)un-randomizedB)biasedC)flagrantD)randomized34)People are reluctant to admit to behavior that may reflect negatively on them. This canleadto ...34)A)sampling biasB)voluntary response biasC)social acceptability biasD)hurt feelings35)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 biasB)random samplingC)leading question biasD)framing36)You ask your friends who they plan to vote for in the next congressional election. Based on theirresponses, you conclude that the candidate you favor cannot lose!This is most likely an example of ...36)A)sampling biasB)self-interest biasC)voluntary response biasD)randomized sampling5

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37)A small brew pub sent out questionnaires to a simple random sample of 250 customersasking whether they would like the brewery to include an imperial stout in their regularofferings. Of the 250 questionnaires, 12 were returned and 10 of those were in favor ofincluding the stout. Specify the type of bias involved.37)A)Voluntary responseB)Self-interestC)SamplingD)Nonresponse38)A sign in a grocery store claims that 92% of their customers believe them to have thefreshest produce in the city. Specify the type of bias involved.38)A)Leading questionB)Self-interestC)Voluntary responseD)Social acceptability39)A radio talk show invites people to call in and state whether or not they think that sexualharassment in the work place is a common problem.39)A)Social acceptabilityB)SamplingC)Voluntary responseD)Self-interest6

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Answer KeyTestname: UNTITLED11)D2)B3)A4)B5)B6)A7)B8)A9)A10)D11)B12)B13)A14)D15)C16)A17)C18)D19)B20)B21)B22)B23)A24)B25)D26)B27)D28)A29)B30)C31)A32)D33)B34)C35)C36)A37)D38)B39)C7

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ExamName___________________________________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 variousfood categories in a recent year.On which food category was the most money spent?1)A)Fruits and vegetablesB)Cereals and baked goodsC)Meat poultry, fish, eggsD)Dairy products2)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 fivelargest annual expenditures. What percentage of the money spent was spent on food, housing, andutilities?4)A)50%B)52.6%C)61.9%D)65%5)The following frequency distribution presents the frequency of passenger vehicles that passthrough a certain intersection from 8:00 AM to 9:00 AM on a particular day.Vehicle TypeFrequencyMotorcycle5Sedan755)4

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SUV70Truck35Construct 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 passthrough a certain intersection from 8:00 AM to 9:00 AM on a particular day.Vehicle TypeFrequencyMotorcycle15Sedan80SUV88Truck34What is the relative frequency of theMotorcylecategory?6)A)0.17B)15C)0.069D)15%7)The following frequency distribution presents the frequency of passenger vehicles that passthrough a certain intersection from 8:00 AM to 9:00 AM on a particular day.Vehicle TypeFrequencyMotorcycle7Sedan63SUV84Truck30Construct a relative frequency distribution for the data.7)A)Vehicle TypeRelative FrequencyMotorcycle0.083Sedan0.75SUV1Truck0.357B)Vehicle TypeRelative FrequencyMotorcycle0.038Sedan0.342SUV0.457Truck0.163C)Vehicle TypeRelative FrequencyMotorcycle0.038%Sedan0.342%SUV0.457%Truck0.163%D)Vehicle TypeRelative FrequencyMotorcycle0.07Sedan0.63SUV0.84Truck0.38)The following frequency distribution presents the frequency of passenger vehicles that passthrough a certain intersection from 8:00 AM to 9:00 AM on a particular day.Vehicle TypeFrequencyMotorcycle9Sedan54SUV278)6

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Truck53Construct 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 passthrough a certain intersection from 8:00 AM to 9:00 AM on a particular day.Vehicle TypeFrequencyMotorcycle7Sedan22SUV58Truck67Construct 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 passthrough a certain intersection from 8:00 AM to 9:00 AM on a particular day.Vehicle TypeFrequencyMotorcycle12Sedan54SUV26Truck64Construct 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 leftB)skewed to the rightC)approximately symmetric12)Classify the histogram as unimodal or bimodal.12)A)unimodalB)bimodal13)One hundred students are shown an eight-digit number on a piece of cardboard for three secondsand are asked to then recite the number from memory. The process is repeated until the studentaccurately recites the entire number from memory. The following histogram presents the numberof trials it took each student to memorize the number.How many students memorized the number in three trials or less?13)A)2B)81C)19D)2410

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14)The following frequency distribution presents the weights in pounds (lb) of a sample of visitors toa health clinic.Weight (lb)Frequency100-1032104-1071108-1114112-1154116-11910120-1239124-1274128-1311What is the class width?14)A)4B)3C)32D)515)The following frequency distribution presents the weights in pounds (lb) of a sample of visitors toa 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 toa 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 gasolinepurchases at a convenience store.Construct a frequency distribution using a class width of 10, and using 0 as the lower class limitfor 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 gasolinepurchases at a convenience store.Construct a relative frequency distribution using a class width of 10, and using 0 as the lower classlimit 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 gasolinepurchases at a convenience store.Construct a frequency histogram using a class width of 10, and using 0 as the lower classlimit forthe 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 gasolinepurchases at a convenience store.Construct a relative frequency histogram using a class width of 10, and using 0 as the lower classlimit 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 theresults.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 theresults.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 watchingtelevision. The following frequency distribution presents the results.Construct a frequency polygon for the frequency distribution.23)A)B)23

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