ONLINE TES BG
T BANK
BG
STATISTICAL REASONING FO BG BG
R EVERYDAY LIFE
BG BG
FIFTH EDITION BG
Jeffrey Bennett BG
University of Colorado at Boulder
BG BG BG BG
William L. Briggs BG BG
University of Colorado at Denver
BG BG BG BG
Mario F. Triola BG BG
Dutchess Community College
BG BG
,TheBGauthorBGandBGpublisherBGhaveBGusedBGtheirBGbestBGeffortsBGinBGpreparingBGthisBGsupplement. BGTheseBGeffortsBGincl
udeBGtheBGdevelopment, BGresearch,BGandBGtestingBGofBGtheBGtheoriesBGandBGprogramsBGtoBGdetermineBGtheirBGeffectivene
ss.BGTheBGauthorBGandBGpublisherBGmakeBGnoBGwarrantyBGofBGanyBGkind,BGexpressedBGorBGimplied,BGwithBGregardBGtoBGth
eseBGprogramsBGorBGtheBGdocumentationBGcontainedBGinBGthisBGbook.BGTheBGauthorBGandBGpublisherBGshallBGnotBGbeBGlia
bleBGinBGanyBGeventBGforBGincidentalBGorBGconsequentialBGdamagesBGinBGconnectionBGwith,BGorBGarisingBGoutBGof,BGtheBGf
urnishing,BGperformance,BGorBGuseBGofBGtheseBGprograms.
ProvidedBGbyBGPearsonBGfromBGelectronicBGfilesBGsuppliedBGbyBGtheBGauthor
.BGCopyrightBG©BG2018,BG2014BGPearsonBGEducation,BGInc.
PublishingBGasBGPearson,BG501BGBoylstonBGStreet,BGBoston,BGMABG02116.
AllBGrightsBGreserved.BGNoBGpartBGofBGthisBGpublicationBGmayBGbeBGreproduced, BGstoredBGinBGaBGretrievalBGsystem,BGorBGt
ransmitted, BGinBGanyBGformBGorBGbyBGanyBGmeans,BGelectronic,BGmechanical, BGphotocopying, BGrecording, BGorBGotherwis
e,BGwithoutBGtheBGpriorBGwrittenBGpermissionBGofBGtheBGpublisher.BGPrintedBGinBGtheBGUnitedBGStatesBGofBGAmerica.
ISBN-13:B G 978-0-13-445697-3
ISBN-10:B G 0-13-445697-1
www.pearsonhighered.com
,Contents
ChapterBG1 SpeakingBGofBGStatistics ................................................................................... 1
ChapterBG2 MeasurementBGinBGStatistics ........................................................................... 13
ChapterBG3 VisualBGDisplaysBGofBGData ............................................................................ 21
ChapterBG4 DescribingBGData ........................................................................................... 44
ChapterBG5 ABGNormalBGWorld......................................................................................... 63
ChapterBG6 ProbabilityBGinBGStatistics ............................................................................... 71
ChapterBG7 CorrelationBGandBGCausality ........................................................................... 83
ChapterBG8 InferencesBGfromBGSamplesBGtoBGPopulations................................................ 100
ChapterBG9 HypothesisBGTesting .................................................................................... 108
ChapterBG10 tBGTests,BGTwo-WayBGTables,BGandBGANOVA............................................. 123
Answers ........................................................................................................................... 135
iii
, Statistical Reasoning for Everyday Life
BG BG BG BG
Chapter 1 (Speaking of Statistics) Exam, form A
BG BG BG BG BG BG BG
MULTIPLEBGCHOICE.BGChooseBGtheBGoneBGalternativeBGthatBGbestBGcompletesBGtheBGstatem
entBGorBGanswersBGtheBGquestion.
ForBGproblemsBG1BGandBG2,BGdetermineBGwhetherBGtheBGevaluatedBGgroupBGisBGaBGpopulationBGorBGaBGsam
ple.
1) TheBGaverageBG(mean)BGageBGofBGallBG63BGAssociateBGProfessorsBGatBGClifftonBGUniversityBGisBG47BGyears.
A) Population B)BGSample
2) ABGresearcherBGexaminesBGtheBGpropertyBGtaxBGrecordsBGofBG84BGpropertyBGownersBGinBGoneBGcityBGand
BGfindsBGthatBG17%BGareBGbehindBGinBGtheirBGtaxBGpayments.
A) Population B)BGSample
ForBGproblemsBG3BGandBG4,BGdetermineBGwhetherBGtheBGgivenBGvalueBGisBGaBGstatisticBGorBGaBGparameter.
3) TheBGaverageBG(mean)BGageBGofBGallBG63BGAssociateBGProfessorsBGatBGClifftonBGUniversityBGisBG47BGyears.
A) Statistic B)BGParameter
4) ABGresearcherBGexaminesBGtheBGpropertyBGtaxBGrecordsBGofBG84BGpropertyBGownersBGinBGoneBGcityBGand
BGfindsBGthatBG17%BGareBGbehindBGinBGtheirBGtaxBGpayments.
A) Statistic B)BGParameter
5) FollowingBGtheBGRepublicanBGNationalBGConvention,BGaBGpollBGofBG600BGvotersBGinBGaBGcentralBGIllinoi
sBGcommunityBGshowedBGthatBG57%BGexpectedBGtheBGRepublicanBGticketBGtoBGwinBGoverBGtheBGDemocra
tBGticketBGnoBGmatterBGwhomBGtheBGDemocratsBGchoseBGforBGvice-
president.BGTheBGmarginBGofBGerrorBGwasBG4BGpercentageBGpoints.BGThereBGareBG25,000BGregisteredBGvo
tersBGinBGtheBGcommunity.BGWhichBGrangeBGofBGvaluesBGisBGlikelyBGtoBGcontainBGtheBGpopulationBGpara
meter?
A) 13,250BGtoBG15,250 B)BG24,400BGtoBG25,600
C)BG318BGtoBG366 D)BG53%BGtoBG61%
6) ABGpollBGofBG488BGcitizensBGofBGNormal,BGIllinois,BGshowedBGthatBG65%BGfavoredBGstrictBGenforcementBG
ofBGspeedBGlimitsBGwithBGaBGmarginBGofBGerrorBGofBG4%.BGABGsecondBGpollBGofBG495BGcitizensBGofBGtheBGsa
meBGtownBGshowedBGthatBG34%BGfavoredBGstrictBGenforcementBGofBGspeedBGlimits.BGAssumingBGthatBGpro
perBGsamplingBGtechniquesBGwereBGusedBGinBGbothBGpolls,BGoneBGmayBGconcludeBGthat
A) theBGpercentBGofBGtheBGpopulationBGthatBGfavorsBGstrictBGenforcementBGofBGspeedBGlimitsBGisBG49.5%BGBG8%.
B) theBGpercentBGofBGtheBGpopulationBGthatBGfavorsBGstrictBGenforcementBGofBGspeedBGlimitsBGisBG49.5%BGBG4%.
C) oneBGorBGbothBGofBGtheBGsamplesBGmayBGhaveBGbeenBGunlikelyBGsamplesBGfromBGtheBGpopulation.
D) theBGpercentBGofBGtheBGpopulationBGthatBGfavorsBGstrictBGenforcementBGofBGspeedBGlimitsBGisBG65%BGBG8%.
7) ABGpollBGofBG700BGattendeesBGofBGtheBGTasteBGofBGChicagoBGshowedBGthatBG445BGattendees,BG65%BGofBGt
heBGsample,BGbelievedBGthatBGtheBGfoodBGwasBGoverpriced.BGItBGisBGestimatedBGthatBG1,250,000BGpeopleBG
attendBGtheBGTaste.BGAlthoughBG65%BGplusBGorBGminusBG5%BGofBGattendeesBGbelieveBGthatBGtheBGfoodBGi
sBGoverpriced,BGtheBGTasteBGisBGaBGpopularBGevent.BGTheBGrawBGdataBGofBGtheBGstudyBGisBG(are)
A) 65%BGofBGtheBGsample.
B) 700BGattendees,BG455BGattendees.
C) 1,250,000BGattendees,BG700BGattendees,BG455BGattendees.
D) (60%,BG70%)
8) ABGstudentBGwantedBGtoBGknowBGtheBGfavoriteBGlunchBGatBGaBGlargeBGhighBGschoolBGwithBGaBGclosedBGca
mpus.BGWhatBGisBGtheBGfirstBGstepBGinBGconductingBGaBGstatisticalBGstudyBGtoBGanswerBGtheBGquestion?
A) SelectBGaBGrandomBGsampleBGofBGstudents.
B) PreciselyBGstateBGtheBGgoalBGofBGtheBGstudy.
C) SelectBGaBGrandomBGsampleBGofBGstudentsBGandBGteachers.
D) SelectBGaBGrandomBGsampleBGofBGteachers.
1
CopyrightBG©BG2018BGPearsonBGEducation,B
GInc.
T BANK
BG
STATISTICAL REASONING FO BG BG
R EVERYDAY LIFE
BG BG
FIFTH EDITION BG
Jeffrey Bennett BG
University of Colorado at Boulder
BG BG BG BG
William L. Briggs BG BG
University of Colorado at Denver
BG BG BG BG
Mario F. Triola BG BG
Dutchess Community College
BG BG
,TheBGauthorBGandBGpublisherBGhaveBGusedBGtheirBGbestBGeffortsBGinBGpreparingBGthisBGsupplement. BGTheseBGeffortsBGincl
udeBGtheBGdevelopment, BGresearch,BGandBGtestingBGofBGtheBGtheoriesBGandBGprogramsBGtoBGdetermineBGtheirBGeffectivene
ss.BGTheBGauthorBGandBGpublisherBGmakeBGnoBGwarrantyBGofBGanyBGkind,BGexpressedBGorBGimplied,BGwithBGregardBGtoBGth
eseBGprogramsBGorBGtheBGdocumentationBGcontainedBGinBGthisBGbook.BGTheBGauthorBGandBGpublisherBGshallBGnotBGbeBGlia
bleBGinBGanyBGeventBGforBGincidentalBGorBGconsequentialBGdamagesBGinBGconnectionBGwith,BGorBGarisingBGoutBGof,BGtheBGf
urnishing,BGperformance,BGorBGuseBGofBGtheseBGprograms.
ProvidedBGbyBGPearsonBGfromBGelectronicBGfilesBGsuppliedBGbyBGtheBGauthor
.BGCopyrightBG©BG2018,BG2014BGPearsonBGEducation,BGInc.
PublishingBGasBGPearson,BG501BGBoylstonBGStreet,BGBoston,BGMABG02116.
AllBGrightsBGreserved.BGNoBGpartBGofBGthisBGpublicationBGmayBGbeBGreproduced, BGstoredBGinBGaBGretrievalBGsystem,BGorBGt
ransmitted, BGinBGanyBGformBGorBGbyBGanyBGmeans,BGelectronic,BGmechanical, BGphotocopying, BGrecording, BGorBGotherwis
e,BGwithoutBGtheBGpriorBGwrittenBGpermissionBGofBGtheBGpublisher.BGPrintedBGinBGtheBGUnitedBGStatesBGofBGAmerica.
ISBN-13:B G 978-0-13-445697-3
ISBN-10:B G 0-13-445697-1
www.pearsonhighered.com
,Contents
ChapterBG1 SpeakingBGofBGStatistics ................................................................................... 1
ChapterBG2 MeasurementBGinBGStatistics ........................................................................... 13
ChapterBG3 VisualBGDisplaysBGofBGData ............................................................................ 21
ChapterBG4 DescribingBGData ........................................................................................... 44
ChapterBG5 ABGNormalBGWorld......................................................................................... 63
ChapterBG6 ProbabilityBGinBGStatistics ............................................................................... 71
ChapterBG7 CorrelationBGandBGCausality ........................................................................... 83
ChapterBG8 InferencesBGfromBGSamplesBGtoBGPopulations................................................ 100
ChapterBG9 HypothesisBGTesting .................................................................................... 108
ChapterBG10 tBGTests,BGTwo-WayBGTables,BGandBGANOVA............................................. 123
Answers ........................................................................................................................... 135
iii
, Statistical Reasoning for Everyday Life
BG BG BG BG
Chapter 1 (Speaking of Statistics) Exam, form A
BG BG BG BG BG BG BG
MULTIPLEBGCHOICE.BGChooseBGtheBGoneBGalternativeBGthatBGbestBGcompletesBGtheBGstatem
entBGorBGanswersBGtheBGquestion.
ForBGproblemsBG1BGandBG2,BGdetermineBGwhetherBGtheBGevaluatedBGgroupBGisBGaBGpopulationBGorBGaBGsam
ple.
1) TheBGaverageBG(mean)BGageBGofBGallBG63BGAssociateBGProfessorsBGatBGClifftonBGUniversityBGisBG47BGyears.
A) Population B)BGSample
2) ABGresearcherBGexaminesBGtheBGpropertyBGtaxBGrecordsBGofBG84BGpropertyBGownersBGinBGoneBGcityBGand
BGfindsBGthatBG17%BGareBGbehindBGinBGtheirBGtaxBGpayments.
A) Population B)BGSample
ForBGproblemsBG3BGandBG4,BGdetermineBGwhetherBGtheBGgivenBGvalueBGisBGaBGstatisticBGorBGaBGparameter.
3) TheBGaverageBG(mean)BGageBGofBGallBG63BGAssociateBGProfessorsBGatBGClifftonBGUniversityBGisBG47BGyears.
A) Statistic B)BGParameter
4) ABGresearcherBGexaminesBGtheBGpropertyBGtaxBGrecordsBGofBG84BGpropertyBGownersBGinBGoneBGcityBGand
BGfindsBGthatBG17%BGareBGbehindBGinBGtheirBGtaxBGpayments.
A) Statistic B)BGParameter
5) FollowingBGtheBGRepublicanBGNationalBGConvention,BGaBGpollBGofBG600BGvotersBGinBGaBGcentralBGIllinoi
sBGcommunityBGshowedBGthatBG57%BGexpectedBGtheBGRepublicanBGticketBGtoBGwinBGoverBGtheBGDemocra
tBGticketBGnoBGmatterBGwhomBGtheBGDemocratsBGchoseBGforBGvice-
president.BGTheBGmarginBGofBGerrorBGwasBG4BGpercentageBGpoints.BGThereBGareBG25,000BGregisteredBGvo
tersBGinBGtheBGcommunity.BGWhichBGrangeBGofBGvaluesBGisBGlikelyBGtoBGcontainBGtheBGpopulationBGpara
meter?
A) 13,250BGtoBG15,250 B)BG24,400BGtoBG25,600
C)BG318BGtoBG366 D)BG53%BGtoBG61%
6) ABGpollBGofBG488BGcitizensBGofBGNormal,BGIllinois,BGshowedBGthatBG65%BGfavoredBGstrictBGenforcementBG
ofBGspeedBGlimitsBGwithBGaBGmarginBGofBGerrorBGofBG4%.BGABGsecondBGpollBGofBG495BGcitizensBGofBGtheBGsa
meBGtownBGshowedBGthatBG34%BGfavoredBGstrictBGenforcementBGofBGspeedBGlimits.BGAssumingBGthatBGpro
perBGsamplingBGtechniquesBGwereBGusedBGinBGbothBGpolls,BGoneBGmayBGconcludeBGthat
A) theBGpercentBGofBGtheBGpopulationBGthatBGfavorsBGstrictBGenforcementBGofBGspeedBGlimitsBGisBG49.5%BGBG8%.
B) theBGpercentBGofBGtheBGpopulationBGthatBGfavorsBGstrictBGenforcementBGofBGspeedBGlimitsBGisBG49.5%BGBG4%.
C) oneBGorBGbothBGofBGtheBGsamplesBGmayBGhaveBGbeenBGunlikelyBGsamplesBGfromBGtheBGpopulation.
D) theBGpercentBGofBGtheBGpopulationBGthatBGfavorsBGstrictBGenforcementBGofBGspeedBGlimitsBGisBG65%BGBG8%.
7) ABGpollBGofBG700BGattendeesBGofBGtheBGTasteBGofBGChicagoBGshowedBGthatBG445BGattendees,BG65%BGofBGt
heBGsample,BGbelievedBGthatBGtheBGfoodBGwasBGoverpriced.BGItBGisBGestimatedBGthatBG1,250,000BGpeopleBG
attendBGtheBGTaste.BGAlthoughBG65%BGplusBGorBGminusBG5%BGofBGattendeesBGbelieveBGthatBGtheBGfoodBGi
sBGoverpriced,BGtheBGTasteBGisBGaBGpopularBGevent.BGTheBGrawBGdataBGofBGtheBGstudyBGisBG(are)
A) 65%BGofBGtheBGsample.
B) 700BGattendees,BG455BGattendees.
C) 1,250,000BGattendees,BG700BGattendees,BG455BGattendees.
D) (60%,BG70%)
8) ABGstudentBGwantedBGtoBGknowBGtheBGfavoriteBGlunchBGatBGaBGlargeBGhighBGschoolBGwithBGaBGclosedBGca
mpus.BGWhatBGisBGtheBGfirstBGstepBGinBGconductingBGaBGstatisticalBGstudyBGtoBGanswerBGtheBGquestion?
A) SelectBGaBGrandomBGsampleBGofBGstudents.
B) PreciselyBGstateBGtheBGgoalBGofBGtheBGstudy.
C) SelectBGaBGrandomBGsampleBGofBGstudentsBGandBGteachers.
D) SelectBGaBGrandomBGsampleBGofBGteachers.
1
CopyrightBG©BG2018BGPearsonBGEducation,B
GInc.
