ONLINE TES FV
T BANK
FV
STATISTICAL REASONING FO FV FV
R EVERYDAY LIFE
FV FV
FIFTH EDITION FV
Jeffrey Bennett FV
University of Colorado at Boulder
FV FV FV FV
William L. Briggs FV FV
University of Colorado at Denver
FV FV FV FV
Mario F. Triola FV FV
Dutchess Community College
FV FV
,TheFVauthorFVandFVpublisherFVhaveFVusedFVtheirFVbestFVeffortsFVinFVpreparingFVthisFVsupplement. FVTheseFVeffortsFVinclud
eFVtheFVdevelopment,FVresearch,FVandFVtestingFVofFVtheFVtheoriesFVandFVprogramsFVtoFVdetermineFVtheirFVeffectiveness. FV
TheFVauthorFVandFVpublisherFVmakeFVnoFVwarrantyFVofFVanyFVkind,FVexpressedFVorFVimplied,FVwithFVregardFVtoFVtheseFVpr
ogramsFVorFVtheFVdocumentationFVcontainedFVinFVthisFVbook.FVTheFVauthorFVandFVpublisherFVshallFVnotFVbeFVliableFVinFVa
nyFVeventFVforFVincidentalFVorFVconsequential FVdamagesFVinFVconnectionFVwith,FVorFVarisingFVoutFVof,FVtheFVfurnishing,FV
performance,FVorFVuseFVofFVtheseFVprograms.
ProvidedFVbyFVPearsonFVfromFVelectronicFVfilesFVsuppliedFVbyFVtheFVauthor.F
VCopyrightFV©FV2018,FV2014FVPearsonFVEducation,FVInc.
PublishingFVasFVPearson,FV501FVBoylstonFVStreet,FVBoston,FVMAFV02116.
AllFVrightsFVreserved.FVNoFVpartFVofFVthisFVpublicationFVmayFVbeFVreproduced, FVstoredFVinFVaFVretrievalFVsystem,FVorFVtra
nsmitted, FVinFVanyFVformFVorFVbyFVanyFVmeans,FVelectronic,FVmechanical, FVphotocopying, FVrecording, FVorFVotherwise,FV
withoutFVtheFVpriorFVwrittenFVpermissionFVofFVtheFVpublisher.FVPrintedFVinFVtheFVUnitedFVStatesFVofFVAmerica.
ISBN-13:F V 978-0-13-445697-3
ISBN-10:F V 0-13-445697-1
www.pearsonhighered.com
,Contents
ChapterFV1 SpeakingFVofFVStatistics .................................................................................... 1
ChapterFV2 MeasurementFVinFVStatistics ........................................................................... 13
ChapterFV3 VisualFVDisplaysFVofFVData ............................................................................. 21
ChapterFV4 DescribingFVData ........................................................................................... 44
ChapterFV5 AFVNormalFVWorld ......................................................................................... 63
ChapterFV6 ProbabilityFVinFVStatistics ............................................................................... 71
ChapterFV7 CorrelationFVandFVCausality ........................................................................... 83
ChapterFV8 InferencesFVfromFVSamplesFVtoFVPopulations ................................................ 100
ChapterFV9 HypothesisFVTesting .................................................................................... 108
ChapterFV10 tFVTests,FVTwo-WayFVTables,FVandFVANOVA.............................................. 123
Answers ........................................................................................................................... 135
iii
, Statistical Reasoning for Everyday Life
FV FV FV FV
Chapter 1 (Speaking of Statistics) Exam, form A
FV FV FV FV FV FV FV
MULTIPLEFVCHOICE.FVChooseFVtheFVoneFValternativeFVthatFVbestFVcompletesFVtheFVstateme
ntFVorFVanswersFVtheFVquestion.
ForFVproblemsFV1FVandFV2,FVdetermineFVwhetherFVtheFVevaluatedFVgroupFVisFVaFVpopulationFVorFVaFVsamp
le.
1) TheFVaverageFV(mean)FVageFVofFVallFV63FVAssociateFVProfessorsFVatFVClifftonFVUniversityFVisFV47FVyears.
A) Population B)FVSample
2) AFVresearcherFVexaminesFVtheFVpropertyFVtaxFVrecordsFVofFV84FVpropertyFVownersFVinFVoneFVcityFVandFVf
indsFVthatFV17%FVareFVbehindFVinFVtheirFVtaxFVpayments.
A) Population B)FVSample
ForFVproblemsFV3FVandFV4,FVdetermineFVwhetherFVtheFVgivenFVvalueFVisFVaFVstatisticFVorFVaFVparameter.
3) TheFVaverageFV(mean)FVageFVofFVallFV63FVAssociateFVProfessorsFVatFVClifftonFVUniversityFVisFV47FVyears.
A) Statistic B)FVParameter
4) AFVresearcherFVexaminesFVtheFVpropertyFVtaxFVrecordsFVofFV84FVpropertyFVownersFVinFVoneFVcityFVandFVf
indsFVthatFV17%FVareFVbehindFVinFVtheirFVtaxFVpayments.
A) Statistic B)FVParameter
5) FollowingFVtheFVRepublicanFVNationalFVConvention,FVaFVpollFVofFV600FVvotersFVinFVaFVcentralFVIllinoisF
VcommunityFVshowedFVthatFV57%FVexpectedFVtheFVRepublicanFVticketFVtoFVwinFVoverFVtheFVDemocratFVti
cketFVnoFVmatterFVwhomFVtheFVDemocratsFVchoseFVforFVvice-
president.FVTheFVmarginFVofFVerrorFVwasFV4FVpercentageFVpoints.FVThereFVareFV25,000FVregisteredFVvote
rsFVinFVtheFVcommunity.FVWhichFVrangeFVofFVvaluesFVisFVlikelyFVtoFVcontainFVtheFVpopulationFVparamete
r?
A) 13,250FVtoFV15,250 B)FV24,400FVtoFV25,600
C)FV318FVtoFV366 D)FV53%FVtoFV61%
6) AFVpollFVofFV488FVcitizensFVofFVNormal,FVIllinois,FVshowedFVthatFV65%FVfavoredFVstrictFVenforcementFVof
FVspeedFVlimitsFVwithFVaFVmarginFVofFVerrorFVofFV4%.FVAFVsecondFVpollFVofFV495FVcitizensFVofFVtheFVsameFV
townFVshowedFVthatFV34%FVfavoredFVstrictFVenforcementFVofFVspeedFVlimits.FVAssumingFVthatFVproperFVs
amplingFVtechniquesFVwereFVusedFVinFVbothFVpolls,FVoneFVmayFVconcludeFVthat
A) theFVpercentFVofFVtheFVpopulationFVthatFVfavorsFVstrictFVenforcementFVofFVspeedFVlimitsFVisFV49.5%FVFV8%.
B) theFVpercentFVofFVtheFVpopulationFVthatFVfavorsFVstrictFVenforcementFVofFVspeedFVlimitsFVisFV49.5%FVFV4%.
C) oneFVorFVbothFVofFVtheFVsamplesFVmayFVhaveFVbeenFVunlikelyFVsamplesFVfromFVtheFVpopulation.
D) theFVpercentFVofFVtheFVpopulationFVthatFVfavorsFVstrictFVenforcementFVofFVspeedFVlimitsFVisFV65%FVFV8%.
7) AFVpollFVofFV700FVattendeesFVofFVtheFVTasteFVofFVChicagoFVshowedFVthatFV445FVattendees,FV65%FVofFVthe
FVsample,FVbelievedFVthatFVtheFVfoodFVwasFVoverpriced.FVItFVisFVestimatedFVthatFV1,250,000FVpeopleFVatte
ndFVtheFVTaste.FVAlthoughFV65%FVplusFVorFVminusFV5%FVofFVattendeesFVbelieveFVthatFVtheFVfoodFVisFVove
rpriced,FVtheFVTasteFVisFVaFVpopularFVevent.FVTheFVrawFVdataFVofFVtheFVstudyFVisFV(are)
A) 65%FVofFVtheFVsample.
B) 700FVattendees,FV455FVattendees.
C) 1,250,000FVattendees,FV700FVattendees,FV455FVattendees.
D) (60%,FV70%)
8) AFVstudentFVwantedFVtoFVknowFVtheFVfavoriteFVlunchFVatFVaFVlargeFVhighFVschoolFVwithFVaFVclosedFVcamp
us.FVWhatFVisFVtheFVfirstFVstepFVinFVconductingFVaFVstatisticalFVstudyFVtoFVanswerFVtheFVquestion?
A) SelectFVaFVrandomFVsampleFVofFVstudents.
B) PreciselyFVstateFVtheFVgoalFVofFVtheFVstudy.
C) SelectFVaFVrandomFVsampleFVofFVstudentsFVandFVteachers.
D) SelectFVaFVrandomFVsampleFVofFVteachers.
1
CopyrightFV©FV2018FVPearsonFVEducation,F
VInc.
T BANK
FV
STATISTICAL REASONING FO FV FV
R EVERYDAY LIFE
FV FV
FIFTH EDITION FV
Jeffrey Bennett FV
University of Colorado at Boulder
FV FV FV FV
William L. Briggs FV FV
University of Colorado at Denver
FV FV FV FV
Mario F. Triola FV FV
Dutchess Community College
FV FV
,TheFVauthorFVandFVpublisherFVhaveFVusedFVtheirFVbestFVeffortsFVinFVpreparingFVthisFVsupplement. FVTheseFVeffortsFVinclud
eFVtheFVdevelopment,FVresearch,FVandFVtestingFVofFVtheFVtheoriesFVandFVprogramsFVtoFVdetermineFVtheirFVeffectiveness. FV
TheFVauthorFVandFVpublisherFVmakeFVnoFVwarrantyFVofFVanyFVkind,FVexpressedFVorFVimplied,FVwithFVregardFVtoFVtheseFVpr
ogramsFVorFVtheFVdocumentationFVcontainedFVinFVthisFVbook.FVTheFVauthorFVandFVpublisherFVshallFVnotFVbeFVliableFVinFVa
nyFVeventFVforFVincidentalFVorFVconsequential FVdamagesFVinFVconnectionFVwith,FVorFVarisingFVoutFVof,FVtheFVfurnishing,FV
performance,FVorFVuseFVofFVtheseFVprograms.
ProvidedFVbyFVPearsonFVfromFVelectronicFVfilesFVsuppliedFVbyFVtheFVauthor.F
VCopyrightFV©FV2018,FV2014FVPearsonFVEducation,FVInc.
PublishingFVasFVPearson,FV501FVBoylstonFVStreet,FVBoston,FVMAFV02116.
AllFVrightsFVreserved.FVNoFVpartFVofFVthisFVpublicationFVmayFVbeFVreproduced, FVstoredFVinFVaFVretrievalFVsystem,FVorFVtra
nsmitted, FVinFVanyFVformFVorFVbyFVanyFVmeans,FVelectronic,FVmechanical, FVphotocopying, FVrecording, FVorFVotherwise,FV
withoutFVtheFVpriorFVwrittenFVpermissionFVofFVtheFVpublisher.FVPrintedFVinFVtheFVUnitedFVStatesFVofFVAmerica.
ISBN-13:F V 978-0-13-445697-3
ISBN-10:F V 0-13-445697-1
www.pearsonhighered.com
,Contents
ChapterFV1 SpeakingFVofFVStatistics .................................................................................... 1
ChapterFV2 MeasurementFVinFVStatistics ........................................................................... 13
ChapterFV3 VisualFVDisplaysFVofFVData ............................................................................. 21
ChapterFV4 DescribingFVData ........................................................................................... 44
ChapterFV5 AFVNormalFVWorld ......................................................................................... 63
ChapterFV6 ProbabilityFVinFVStatistics ............................................................................... 71
ChapterFV7 CorrelationFVandFVCausality ........................................................................... 83
ChapterFV8 InferencesFVfromFVSamplesFVtoFVPopulations ................................................ 100
ChapterFV9 HypothesisFVTesting .................................................................................... 108
ChapterFV10 tFVTests,FVTwo-WayFVTables,FVandFVANOVA.............................................. 123
Answers ........................................................................................................................... 135
iii
, Statistical Reasoning for Everyday Life
FV FV FV FV
Chapter 1 (Speaking of Statistics) Exam, form A
FV FV FV FV FV FV FV
MULTIPLEFVCHOICE.FVChooseFVtheFVoneFValternativeFVthatFVbestFVcompletesFVtheFVstateme
ntFVorFVanswersFVtheFVquestion.
ForFVproblemsFV1FVandFV2,FVdetermineFVwhetherFVtheFVevaluatedFVgroupFVisFVaFVpopulationFVorFVaFVsamp
le.
1) TheFVaverageFV(mean)FVageFVofFVallFV63FVAssociateFVProfessorsFVatFVClifftonFVUniversityFVisFV47FVyears.
A) Population B)FVSample
2) AFVresearcherFVexaminesFVtheFVpropertyFVtaxFVrecordsFVofFV84FVpropertyFVownersFVinFVoneFVcityFVandFVf
indsFVthatFV17%FVareFVbehindFVinFVtheirFVtaxFVpayments.
A) Population B)FVSample
ForFVproblemsFV3FVandFV4,FVdetermineFVwhetherFVtheFVgivenFVvalueFVisFVaFVstatisticFVorFVaFVparameter.
3) TheFVaverageFV(mean)FVageFVofFVallFV63FVAssociateFVProfessorsFVatFVClifftonFVUniversityFVisFV47FVyears.
A) Statistic B)FVParameter
4) AFVresearcherFVexaminesFVtheFVpropertyFVtaxFVrecordsFVofFV84FVpropertyFVownersFVinFVoneFVcityFVandFVf
indsFVthatFV17%FVareFVbehindFVinFVtheirFVtaxFVpayments.
A) Statistic B)FVParameter
5) FollowingFVtheFVRepublicanFVNationalFVConvention,FVaFVpollFVofFV600FVvotersFVinFVaFVcentralFVIllinoisF
VcommunityFVshowedFVthatFV57%FVexpectedFVtheFVRepublicanFVticketFVtoFVwinFVoverFVtheFVDemocratFVti
cketFVnoFVmatterFVwhomFVtheFVDemocratsFVchoseFVforFVvice-
president.FVTheFVmarginFVofFVerrorFVwasFV4FVpercentageFVpoints.FVThereFVareFV25,000FVregisteredFVvote
rsFVinFVtheFVcommunity.FVWhichFVrangeFVofFVvaluesFVisFVlikelyFVtoFVcontainFVtheFVpopulationFVparamete
r?
A) 13,250FVtoFV15,250 B)FV24,400FVtoFV25,600
C)FV318FVtoFV366 D)FV53%FVtoFV61%
6) AFVpollFVofFV488FVcitizensFVofFVNormal,FVIllinois,FVshowedFVthatFV65%FVfavoredFVstrictFVenforcementFVof
FVspeedFVlimitsFVwithFVaFVmarginFVofFVerrorFVofFV4%.FVAFVsecondFVpollFVofFV495FVcitizensFVofFVtheFVsameFV
townFVshowedFVthatFV34%FVfavoredFVstrictFVenforcementFVofFVspeedFVlimits.FVAssumingFVthatFVproperFVs
amplingFVtechniquesFVwereFVusedFVinFVbothFVpolls,FVoneFVmayFVconcludeFVthat
A) theFVpercentFVofFVtheFVpopulationFVthatFVfavorsFVstrictFVenforcementFVofFVspeedFVlimitsFVisFV49.5%FVFV8%.
B) theFVpercentFVofFVtheFVpopulationFVthatFVfavorsFVstrictFVenforcementFVofFVspeedFVlimitsFVisFV49.5%FVFV4%.
C) oneFVorFVbothFVofFVtheFVsamplesFVmayFVhaveFVbeenFVunlikelyFVsamplesFVfromFVtheFVpopulation.
D) theFVpercentFVofFVtheFVpopulationFVthatFVfavorsFVstrictFVenforcementFVofFVspeedFVlimitsFVisFV65%FVFV8%.
7) AFVpollFVofFV700FVattendeesFVofFVtheFVTasteFVofFVChicagoFVshowedFVthatFV445FVattendees,FV65%FVofFVthe
FVsample,FVbelievedFVthatFVtheFVfoodFVwasFVoverpriced.FVItFVisFVestimatedFVthatFV1,250,000FVpeopleFVatte
ndFVtheFVTaste.FVAlthoughFV65%FVplusFVorFVminusFV5%FVofFVattendeesFVbelieveFVthatFVtheFVfoodFVisFVove
rpriced,FVtheFVTasteFVisFVaFVpopularFVevent.FVTheFVrawFVdataFVofFVtheFVstudyFVisFV(are)
A) 65%FVofFVtheFVsample.
B) 700FVattendees,FV455FVattendees.
C) 1,250,000FVattendees,FV700FVattendees,FV455FVattendees.
D) (60%,FV70%)
8) AFVstudentFVwantedFVtoFVknowFVtheFVfavoriteFVlunchFVatFVaFVlargeFVhighFVschoolFVwithFVaFVclosedFVcamp
us.FVWhatFVisFVtheFVfirstFVstepFVinFVconductingFVaFVstatisticalFVstudyFVtoFVanswerFVtheFVquestion?
A) SelectFVaFVrandomFVsampleFVofFVstudents.
B) PreciselyFVstateFVtheFVgoalFVofFVtheFVstudy.
C) SelectFVaFVrandomFVsampleFVofFVstudentsFVandFVteachers.
D) SelectFVaFVrandomFVsampleFVofFVteachers.
1
CopyrightFV©FV2018FVPearsonFVEducation,F
VInc.
