ONLINE TES M
T BANK
M
STATISTICAL R EASONING FO M M
R EVERYDAY LIFE
M M
FIFTH EDITION M
Jeffrey Bennett m
University of Colorado at Boulder
m m m m
William L. Briggs m m
University of Colorado at Denver
m m m m
Mario F. Triola m m
Dutchess Community College
m m
,Themauthormand mpublishermhavemused mtheirmbest meffortsmin mpreparingmthismsupplement.mThesemeffortsmincludemthemdev
elopment,mresearch,mand mtestingmof mthemtheoriesmand mprogramsmto mdeterminemtheirmeffectiveness.mThemauthormand mpu
blishermmakemno mwarranty mof many mkind,mexpressed mormimplied,mwith mregard mto mthesemprogramsmormthemdocumentation
mcontained min mthismbook.mThe mauthormandmpublishermshallmnot mbe mliable min many mevent mformincidentalmormconsequential
mdamagesmin mconnection mwith,mormarisingmout mof,mthe mfurnishing,mperformance,mormuse mof mthese mprograms.
Provided mby mPearson mfrom melectronicmfilesmsupplied mby mthemauthor.mCop
yright m©m2018,m2014 mPearson mEducation,mInc.
PublishingmasmPearson,m501 mBoylston mStreet,mBoston,mMAm02116.
Allmrightsmreserved.mNo mpart mof mthismpublication mmay mbemreproduced,mstored min ma mretrievalmsystem,mormtransmitted,mi
n many mform mormby many mmeans,melectronic,mmechanical,mphotocopying,mrecording,mormotherwise,mwithout mthempriormwr
itten mpermission mof mthempublisher.mPrinted min mthemUnited mStatesmof mAmerica.
ISBN-13:m 978-0-13-445697-3
ISBN-10:m 0-13-445697-1
www.pearsonhighered.com
,Contents
Chapterm1 Speakingmof mStatistics ..................................................................................... 1
Chapterm2 Measurement minmStatistics.............................................................................13
Chapterm3 VisualmDisplaysmof mData ...............................................................................21
Chapterm4 DescribingmData ............................................................................................44
Chapterm5 AmNormalmWorld...........................................................................................63
Chapterm6 ProbabilityminmStatistics.................................................................................71
Chapterm7 Correlationmand mCausality .............................................................................83
Chapterm8 InferencesmfrommSamplesmtomPopulations....................................................100
Chapterm9 HypothesismTesting .....................................................................................108
Chapterm10 tmTests,m Two-Waym Tables,mand mANOVA..................................................123
Answers ...........................................................................................................................135
iii
, Statistical Reasoning for Everyday Life
m m m m
Chapter 1 (Speaking of Statistics) Exam, form A
m m m m m m m
MULTIPLEmCHOICE.mChoosemthemonemalternativemthatmbestmcompletesmthemstatementmo
rmanswersmthemquestion.
Formproblemsm1mandm2,mdeterminemwhethermthemevaluatedmgroupmismampopulationmormamsample.
1) Themaveragem(mean)magemof mallm63 mAssociatemProfessorsmatmCliffton mUniversity mism47 myears.
A) Population B)mSample
2) Amresearchermexaminesmthemproperty mtax mrecordsmofm84mproperty mownersmin monemcity mand mfindsmthat
m17% mare mbehind min mtheirmtax mpayments.
A) Population B)mSample
Formproblemsm3mandm4,mdeterminemwhethermthemgivenmvaluemismamstatisticmormamparameter.
3) Themaveragem(mean)magemof mallm63 mAssociatemProfessorsmatmCliffton mUniversity mism47 myears.
A) Statistic B)mParameter
4) Amresearchermexaminesmthemproperty mtax mrecordsmofm84mproperty mownersmin monemcity mand mfindsmthat
m17% mare mbehind min mtheirmtax mpayments.
A) Statistic B)mParameter
5) FollowingmthemRepublican mNationalmConvention,ma mpollmof m600 mvotersmin ma mcentralmIllinoismcommu
nity mshowed mthat m57%mexpected mthemRepublican mticket mto mwin movermthemDemocratmticket mnommatterm
whom mthemDemocratsmchosemformvice-
president.mThemmargin mof merrormwasm4 mpercentagempoints.mTheremarem25,000 mregistered mvotersmin mth
emcommunity.mWhich mrangemof mvaluesmismlikely mto mcontain mthempopulation mparameter?
A) 13,250 mto m15,250 B)m24,400 mto m25,600
C)m318 mto m366 D)m53%mto m61%
6) Ampollmof m488 mcitizensmof mNormal,mIllinois,mshowed mthat m65%mfavored mstrict menforcement mof mspeed mli
mitsmwith ma mmargin mof merrormof m4%.mAmsecond mpollmof m495 mcitizensmof mthemsamemtown mshowed mthatm3
4%mfavored mstrict menforcement mof mspeed mlimits.mAssumingmthat mpropermsamplingmtechniquesmweremus
ed min mboth mpolls,monemmay mconcludemthat
A) thempercent mof mthempopulation mthat mfavorsmstrict menforcement mof mspeed mlimitsmism49.5%mm8%.
B) thempercent mof mthempopulation mthat mfavorsmstrict menforcement mof mspeed mlimitsmism49.5%mm4%.
C) onemormboth mof mthemsamplesmmay mhavembeen munlikely msamplesmfrom mthempopulation.
D) thempercent mof mthempopulation mthat mfavorsmstrict menforcement mof mspeed mlimitsmism65%mm8%.
7) Ampollmof m700 mattendeesmof mthemTastemofmChicago mshowed mthat m445 mattendees,m65%mofmthemsample,m
believed mthat mthemfood mwasmoverpriced.mIt mismestimatedmthatm1,250,000 mpeoplemattend mthemTaste.mAlth
ough m65%mplusmormminusm5%mof mattendeesmbelievemthat mthemfood mismoverpriced,mthemTastemisma mpopu
larmevent.mThemrawmdata mof mthemstudy mism(are)
A) 65%mof mthemsample.
B) 700 mattendees,m455 mattendees.
C) 1,250,000 mattendees,m700 mattendees,m455 mattendees.
D) (60%,m70%)
8) Amstudent mwanted mto mknowmthemfavoritemlunch matmamlargemhigh mschoolmwith ma mclosed mcampus.mWhat
mismthe mfirst mstep min mconductingma mstatisticalmstudy mto manswermthe mquestion?
A) Select ma mrandom msamplemof mstudents.
B) Precisely mstatemthemgoalmof mthemstudy.
C) Select ma mrandom msamplemof mstudentsmand mteachers.
D) Select ma mrandom msamplemof mteachers.
1
Copyright m©m2018 mPearson mEducation,mIn
c.
T BANK
M
STATISTICAL R EASONING FO M M
R EVERYDAY LIFE
M M
FIFTH EDITION M
Jeffrey Bennett m
University of Colorado at Boulder
m m m m
William L. Briggs m m
University of Colorado at Denver
m m m m
Mario F. Triola m m
Dutchess Community College
m m
,Themauthormand mpublishermhavemused mtheirmbest meffortsmin mpreparingmthismsupplement.mThesemeffortsmincludemthemdev
elopment,mresearch,mand mtestingmof mthemtheoriesmand mprogramsmto mdeterminemtheirmeffectiveness.mThemauthormand mpu
blishermmakemno mwarranty mof many mkind,mexpressed mormimplied,mwith mregard mto mthesemprogramsmormthemdocumentation
mcontained min mthismbook.mThe mauthormandmpublishermshallmnot mbe mliable min many mevent mformincidentalmormconsequential
mdamagesmin mconnection mwith,mormarisingmout mof,mthe mfurnishing,mperformance,mormuse mof mthese mprograms.
Provided mby mPearson mfrom melectronicmfilesmsupplied mby mthemauthor.mCop
yright m©m2018,m2014 mPearson mEducation,mInc.
PublishingmasmPearson,m501 mBoylston mStreet,mBoston,mMAm02116.
Allmrightsmreserved.mNo mpart mof mthismpublication mmay mbemreproduced,mstored min ma mretrievalmsystem,mormtransmitted,mi
n many mform mormby many mmeans,melectronic,mmechanical,mphotocopying,mrecording,mormotherwise,mwithout mthempriormwr
itten mpermission mof mthempublisher.mPrinted min mthemUnited mStatesmof mAmerica.
ISBN-13:m 978-0-13-445697-3
ISBN-10:m 0-13-445697-1
www.pearsonhighered.com
,Contents
Chapterm1 Speakingmof mStatistics ..................................................................................... 1
Chapterm2 Measurement minmStatistics.............................................................................13
Chapterm3 VisualmDisplaysmof mData ...............................................................................21
Chapterm4 DescribingmData ............................................................................................44
Chapterm5 AmNormalmWorld...........................................................................................63
Chapterm6 ProbabilityminmStatistics.................................................................................71
Chapterm7 Correlationmand mCausality .............................................................................83
Chapterm8 InferencesmfrommSamplesmtomPopulations....................................................100
Chapterm9 HypothesismTesting .....................................................................................108
Chapterm10 tmTests,m Two-Waym Tables,mand mANOVA..................................................123
Answers ...........................................................................................................................135
iii
, Statistical Reasoning for Everyday Life
m m m m
Chapter 1 (Speaking of Statistics) Exam, form A
m m m m m m m
MULTIPLEmCHOICE.mChoosemthemonemalternativemthatmbestmcompletesmthemstatementmo
rmanswersmthemquestion.
Formproblemsm1mandm2,mdeterminemwhethermthemevaluatedmgroupmismampopulationmormamsample.
1) Themaveragem(mean)magemof mallm63 mAssociatemProfessorsmatmCliffton mUniversity mism47 myears.
A) Population B)mSample
2) Amresearchermexaminesmthemproperty mtax mrecordsmofm84mproperty mownersmin monemcity mand mfindsmthat
m17% mare mbehind min mtheirmtax mpayments.
A) Population B)mSample
Formproblemsm3mandm4,mdeterminemwhethermthemgivenmvaluemismamstatisticmormamparameter.
3) Themaveragem(mean)magemof mallm63 mAssociatemProfessorsmatmCliffton mUniversity mism47 myears.
A) Statistic B)mParameter
4) Amresearchermexaminesmthemproperty mtax mrecordsmofm84mproperty mownersmin monemcity mand mfindsmthat
m17% mare mbehind min mtheirmtax mpayments.
A) Statistic B)mParameter
5) FollowingmthemRepublican mNationalmConvention,ma mpollmof m600 mvotersmin ma mcentralmIllinoismcommu
nity mshowed mthat m57%mexpected mthemRepublican mticket mto mwin movermthemDemocratmticket mnommatterm
whom mthemDemocratsmchosemformvice-
president.mThemmargin mof merrormwasm4 mpercentagempoints.mTheremarem25,000 mregistered mvotersmin mth
emcommunity.mWhich mrangemof mvaluesmismlikely mto mcontain mthempopulation mparameter?
A) 13,250 mto m15,250 B)m24,400 mto m25,600
C)m318 mto m366 D)m53%mto m61%
6) Ampollmof m488 mcitizensmof mNormal,mIllinois,mshowed mthat m65%mfavored mstrict menforcement mof mspeed mli
mitsmwith ma mmargin mof merrormof m4%.mAmsecond mpollmof m495 mcitizensmof mthemsamemtown mshowed mthatm3
4%mfavored mstrict menforcement mof mspeed mlimits.mAssumingmthat mpropermsamplingmtechniquesmweremus
ed min mboth mpolls,monemmay mconcludemthat
A) thempercent mof mthempopulation mthat mfavorsmstrict menforcement mof mspeed mlimitsmism49.5%mm8%.
B) thempercent mof mthempopulation mthat mfavorsmstrict menforcement mof mspeed mlimitsmism49.5%mm4%.
C) onemormboth mof mthemsamplesmmay mhavembeen munlikely msamplesmfrom mthempopulation.
D) thempercent mof mthempopulation mthat mfavorsmstrict menforcement mof mspeed mlimitsmism65%mm8%.
7) Ampollmof m700 mattendeesmof mthemTastemofmChicago mshowed mthat m445 mattendees,m65%mofmthemsample,m
believed mthat mthemfood mwasmoverpriced.mIt mismestimatedmthatm1,250,000 mpeoplemattend mthemTaste.mAlth
ough m65%mplusmormminusm5%mof mattendeesmbelievemthat mthemfood mismoverpriced,mthemTastemisma mpopu
larmevent.mThemrawmdata mof mthemstudy mism(are)
A) 65%mof mthemsample.
B) 700 mattendees,m455 mattendees.
C) 1,250,000 mattendees,m700 mattendees,m455 mattendees.
D) (60%,m70%)
8) Amstudent mwanted mto mknowmthemfavoritemlunch matmamlargemhigh mschoolmwith ma mclosed mcampus.mWhat
mismthe mfirst mstep min mconductingma mstatisticalmstudy mto manswermthe mquestion?
A) Select ma mrandom msamplemof mstudents.
B) Precisely mstatemthemgoalmof mthemstudy.
C) Select ma mrandom msamplemof mstudentsmand mteachers.
D) Select ma mrandom msamplemof mteachers.
1
Copyright m©m2018 mPearson mEducation,mIn
c.
