TEST BANK
,MULTIPLE CHOICE.
Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
1) In a sample of 775 senior citizens, approximately 67% said that they had seen a television 1)
commercial for life insurance. About how many senior citizens is this?
A) Not enough information available. B) 519
C) 67 D) 256
Answer: B
2) A two-way table could be used for which of the following pairs of variables? 2)
A) Gender and age B) Age and favorite class
C) Gender and favorite class D) Age and height
Answer: C
Indicate whether the study described is an observational study or a controlled experiment.
3) "People with diabetes are at higher risk for certain cancers than those without the blood sugar 3)
disease, suggests a new study based on a telephone survey of nearly 400,000 adults."
A) Controlled experiment B) Observational study
Answer: B
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Answer the question.
4) The number of clinically obese men in State A is 156,261 and the number of clinically obese 4)
men in State B is 294,269. Someone makes the claim that this is evidence that men exercise
more in State A. What information is missing that might contradict this claim?
Answer: We need to know the total number of men in State A and State B so that a comparison
can be made of the percentage of the men in each state that are clinically obese. There
could be a much higher male population in State B than State A. Also, assumptions
about exercise and obesity are being made.
1
, MULTIPLE zCHOICE. zChoose zthe zone zalternative zthat zbest zcompletes zthe zstatement zor zanswers zthe
zquestion.
Use zthe zdata zin zTable z1A zto zanswer zthe zquestion.
Note: z1 zis zfemale, z0 zis zmale.
5) zSuppose zyou zwanted zto zknow zwhether zthe zstudent's zcommute zdistance zwas zassociated zwith
zthe 5)
student's zliving zsituation. z zUsing zthe zdata ztable zif zpossible, zwhich zvariables zwould zyou zuse?
A) zUse zCommute zDistance z(Miles) zand zLiving zSituation.
B) zData zon zstudent's zliving zsituation zare znot zincluded zin
zthis zstudy. zC) zUse zCommute zDistance z(Miles) zand zCollege
zUnits zAcquired.
D) zUse zCollege zUnits zAcquired zand zLiving
zSituation. zAnswer: zA
In za zstudy zof z1350 zelementary zschool zchildren, z118 zout zof zthe z615 zgirls zin zthe zstudy zsaid zthey zwant zto zbe za
zteacher zwhen
they zgrow zup.
6) zWhat zpercent zof zgirls zwant zto zbe za zteacher zwhen zthey zgrow
zup? 6)
A) z45.6% B) z80.8% C) z8.7% D) z19.2%
Answer: zD
Determine zif zthe zfollowing zscenario zis zan zobservational zstudy zor za zcontrolled zexperiment.
7) zA zdoctor zis zinterested zin zdetermining zwhether za zcertain zmedication zincreases zthe zrisk zof zhigh
zblood 7)
pressure. zHe zrandomly zselects z100 zpeople zfor zhis zstudy z- z50 zwho zwill ztake zthe zmedication,
zand z50
who zwill ztake za zplacebo. zHe zchecks zthe zpatients' zblood zpressures zweekly zfor zsix zmonths.
A) zObservational zstudy B) zNeither C) zControlled zexperiment
Answer: zC
Solve zthe zproblem.
8) zThe znumber zof zparents zwho zattended zparent zteacher zconferences zat za zlocal zelementary zschool
zis zan 8)
example zof zwhat ztype zof
zvariable?
A) zNumerical zvariable B) zCategorical zvariable C) zNeither
Answer: zA
,MULTIPLE CHOICE.
Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
1) In a sample of 775 senior citizens, approximately 67% said that they had seen a television 1)
commercial for life insurance. About how many senior citizens is this?
A) Not enough information available. B) 519
C) 67 D) 256
Answer: B
2) A two-way table could be used for which of the following pairs of variables? 2)
A) Gender and age B) Age and favorite class
C) Gender and favorite class D) Age and height
Answer: C
Indicate whether the study described is an observational study or a controlled experiment.
3) "People with diabetes are at higher risk for certain cancers than those without the blood sugar 3)
disease, suggests a new study based on a telephone survey of nearly 400,000 adults."
A) Controlled experiment B) Observational study
Answer: B
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Answer the question.
4) The number of clinically obese men in State A is 156,261 and the number of clinically obese 4)
men in State B is 294,269. Someone makes the claim that this is evidence that men exercise
more in State A. What information is missing that might contradict this claim?
Answer: We need to know the total number of men in State A and State B so that a comparison
can be made of the percentage of the men in each state that are clinically obese. There
could be a much higher male population in State B than State A. Also, assumptions
about exercise and obesity are being made.
1
, MULTIPLE zCHOICE. zChoose zthe zone zalternative zthat zbest zcompletes zthe zstatement zor zanswers zthe
zquestion.
Use zthe zdata zin zTable z1A zto zanswer zthe zquestion.
Note: z1 zis zfemale, z0 zis zmale.
5) zSuppose zyou zwanted zto zknow zwhether zthe zstudent's zcommute zdistance zwas zassociated zwith
zthe 5)
student's zliving zsituation. z zUsing zthe zdata ztable zif zpossible, zwhich zvariables zwould zyou zuse?
A) zUse zCommute zDistance z(Miles) zand zLiving zSituation.
B) zData zon zstudent's zliving zsituation zare znot zincluded zin
zthis zstudy. zC) zUse zCommute zDistance z(Miles) zand zCollege
zUnits zAcquired.
D) zUse zCollege zUnits zAcquired zand zLiving
zSituation. zAnswer: zA
In za zstudy zof z1350 zelementary zschool zchildren, z118 zout zof zthe z615 zgirls zin zthe zstudy zsaid zthey zwant zto zbe za
zteacher zwhen
they zgrow zup.
6) zWhat zpercent zof zgirls zwant zto zbe za zteacher zwhen zthey zgrow
zup? 6)
A) z45.6% B) z80.8% C) z8.7% D) z19.2%
Answer: zD
Determine zif zthe zfollowing zscenario zis zan zobservational zstudy zor za zcontrolled zexperiment.
7) zA zdoctor zis zinterested zin zdetermining zwhether za zcertain zmedication zincreases zthe zrisk zof zhigh
zblood 7)
pressure. zHe zrandomly zselects z100 zpeople zfor zhis zstudy z- z50 zwho zwill ztake zthe zmedication,
zand z50
who zwill ztake za zplacebo. zHe zchecks zthe zpatients' zblood zpressures zweekly zfor zsix zmonths.
A) zObservational zstudy B) zNeither C) zControlled zexperiment
Answer: zC
Solve zthe zproblem.
8) zThe znumber zof zparents zwho zattended zparent zteacher zconferences zat za zlocal zelementary zschool
zis zan 8)
example zof zwhat ztype zof
zvariable?
A) zNumerical zvariable B) zCategorical zvariable C) zNeither
Answer: zA
