TEST BANK FOR
w w
IntroductorywStatistics,w10thwEditionwbywPremwS.wMann
Chapterw1-15
Chapterw1 Introduction
1.1 wStatisticswandwTypeswofwStatistics
1) Underwdescriptivewstatistics,wwewstudy:
A) thewmethodswtowmakewdecisionswaboutwoneworwmorewpopulationswbasedwonwsamplewresults
B) thewmethodswforworganizing,wdisplaying,wandwdescribingwdata
C) howwtowdescribewthewprobabilitywdistribution
D) sampleswtowassistwinwdecisionwmakin
gwAnswer:w B
Diff:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw001
2) Underwinferentialwstatistics,wwewstudy:
A) thewmethodswtowmakewdecisionswaboutwoneworwmorewpopulationswbasedwonwsamplewresults
B) thewmethodswforworganizing,wdisplaying,wandwdescribingwdata
C) howwtowdescribewthewfrequencywdistribution
D) typeswofwsummarywmeasures
wAnswer:w A
Diff:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw002
3) TrueworwFalse:wInwstatistics,wawpopulationwconsistswofwallwsubjectsworwobjectswwhosewcharacteristi
cswarewbeingwstudied.
Answer:w TRUEwDif
f:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw003
4) Inwstatistics,wwewdefinewawsamplewas:
A) peoplewlivingwinwonewcitywonly
B) thewtargetwpopulation
C) allwitemswunderwinvestigation
D) awportionwofwthewpopulatio
nwAnswer:w D
Diff:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
1
,QuestionwTitle:w w Chapterw01,wTestbankwQuestionw004
1.2 BasicwTerms
1) Anwobservationwiswa:
A) graphwobservedwforwawdatawset
B) valuewofwawvariablewforwawsinglewelement
C) tablewpreparedwforwawdatawset
D) samplewobservedwfromwthewpopulatio
nwAnswer:w B
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw005
2) Anwindependentwgroupwwantswtowdeterminewifwthewconsumptionwofwgasolinewhaswincreasedwduewt
owchangeswinwprice.wThewgroupwrandomlywselectsw320wgaswstationswfromw12wdifferentwstateswandwcoll
ectswdatawfromwthewmonthwofwthewyearwwhenwgaswiswthewcheapestwandwfromwthewmonthwofwthewyearww
henwgaswiswthewmostwexpensive.wThewdatawshowswnowsignificantwdifferencewinwgaswconsumptionwbet
weenwthewtwowmonths.wInwthiswexample,wwhatwiswthewvariablewbeingwstudied?
A) Thew320wgaswstationswchosen
B) Thew12wdifferentwstates
C) Thewconsumptionwofwgasoline
D) Thewpricewofwgasoline
wAnswer:w C
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw006
3) Awdatawsetwiswa:
A) setwofwdecisionswmadewaboutwthewpopulation
B) setwofwgraphswandwpictures
C) collectionwofwobservationswonwoneworwmorewvariables
D) scorewcollectedwfromwanwelementwofwthewpopulatio
nwAnswer:w C
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw007
2
,Usewthewfollowingwtowanswerwthewquestionswbelow.
Thewfollowingwtablewlistswthewtemperaturesw(inwdegreeswFahrenheit)wofwessentialwworkersw
enteringwawmedicalwfacility.
Temperature
(inwdegreeswF
EssentialwWorker ahrenheit)
Sam 99.4
Betty 98.0
Lateshia 98.9
Amani 98.3
Connor 97.6
Vincent 99.6
Maria 98.0
4) Whatwiswthewvariablewforwthiswdatawset
?wAnswer:w Temperature
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw008
5) Howwmanywobservationswarewinwthiswdatawset
?wAnswer:w 7
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw009
6) Howwmanywelementswdoeswthiswdatawsetwcontain
?wAnswer:w 7
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw010
1.3 TypeswofwVariables
1) Awquantitativewvariablewiswthewonlywtypewofwvariablewthatwcan:
A) assumewnumericwvalueswforwwhichwarithmeticwoperationswmakewsense
B) bewgraphed
C) bewusedwtowpreparewtables
D) havewnowintermediatewvalues
wAnswer:w A
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
3
, QuestionwTitle:w w Chapterw01,wTestbankwQuestionw01
1
2) Awdiscretewvariablewiswawvariablewthatwcanwassume:
A) categoricalwvalueswonly
B) awcountablewsetwofwvalueswonly
C) anwuncountablewsetwofwvalues
D) non-
numericalwvalueswAnswe
r:w B
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw012
3) Awcontinuouswvariablewiswawvariablewthatwcanwassume:
A) categoricalwvalueswonly
B) awcountablewsetwofwvalueswonly
C) anywvaluewinwanwinterval
D) non-
numericalwvalueswAnswe
r:w C
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw013
4) Awqualitativewvariablewiswawvariablewthat:
A) canwassumewnumericalwvalues
B) cannotwbewgraphed
C) canwassumewanwuncountablewsetwofwvalues
D) cannotwbewmeasuredwnumerically
wAnswer:w D
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw014
5) Iswthew"sizewofwawuniversity'swenrollmentwincreasewfromwlastwyearwtowthiswyear"wanwexamplew
ofwqualitativeworwquantitativewdata?
Answer:w QuantitativewDi
ff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw015
6) Iswthewvariablew"lengthswofwtop-
tenwhitwsongs"wdiscreteworwcontinuous?wAnswer:w Continuous
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
4
w w
IntroductorywStatistics,w10thwEditionwbywPremwS.wMann
Chapterw1-15
Chapterw1 Introduction
1.1 wStatisticswandwTypeswofwStatistics
1) Underwdescriptivewstatistics,wwewstudy:
A) thewmethodswtowmakewdecisionswaboutwoneworwmorewpopulationswbasedwonwsamplewresults
B) thewmethodswforworganizing,wdisplaying,wandwdescribingwdata
C) howwtowdescribewthewprobabilitywdistribution
D) sampleswtowassistwinwdecisionwmakin
gwAnswer:w B
Diff:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw001
2) Underwinferentialwstatistics,wwewstudy:
A) thewmethodswtowmakewdecisionswaboutwoneworwmorewpopulationswbasedwonwsamplewresults
B) thewmethodswforworganizing,wdisplaying,wandwdescribingwdata
C) howwtowdescribewthewfrequencywdistribution
D) typeswofwsummarywmeasures
wAnswer:w A
Diff:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw002
3) TrueworwFalse:wInwstatistics,wawpopulationwconsistswofwallwsubjectsworwobjectswwhosewcharacteristi
cswarewbeingwstudied.
Answer:w TRUEwDif
f:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw003
4) Inwstatistics,wwewdefinewawsamplewas:
A) peoplewlivingwinwonewcitywonly
B) thewtargetwpopulation
C) allwitemswunderwinvestigation
D) awportionwofwthewpopulatio
nwAnswer:w D
Diff:w1
LO:w 1.1.0wDemonstratewanwunderstandingwofwthewtypeswofwstatistics.wSecti
on:w 1.1wStatisticswandwTypeswofwStatistics
1
,QuestionwTitle:w w Chapterw01,wTestbankwQuestionw004
1.2 BasicwTerms
1) Anwobservationwiswa:
A) graphwobservedwforwawdatawset
B) valuewofwawvariablewforwawsinglewelement
C) tablewpreparedwforwawdatawset
D) samplewobservedwfromwthewpopulatio
nwAnswer:w B
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw005
2) Anwindependentwgroupwwantswtowdeterminewifwthewconsumptionwofwgasolinewhaswincreasedwduewt
owchangeswinwprice.wThewgroupwrandomlywselectsw320wgaswstationswfromw12wdifferentwstateswandwcoll
ectswdatawfromwthewmonthwofwthewyearwwhenwgaswiswthewcheapestwandwfromwthewmonthwofwthewyearww
henwgaswiswthewmostwexpensive.wThewdatawshowswnowsignificantwdifferencewinwgaswconsumptionwbet
weenwthewtwowmonths.wInwthiswexample,wwhatwiswthewvariablewbeingwstudied?
A) Thew320wgaswstationswchosen
B) Thew12wdifferentwstates
C) Thewconsumptionwofwgasoline
D) Thewpricewofwgasoline
wAnswer:w C
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw006
3) Awdatawsetwiswa:
A) setwofwdecisionswmadewaboutwthewpopulation
B) setwofwgraphswandwpictures
C) collectionwofwobservationswonwoneworwmorewvariables
D) scorewcollectedwfromwanwelementwofwthewpopulatio
nwAnswer:w C
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw007
2
,Usewthewfollowingwtowanswerwthewquestionswbelow.
Thewfollowingwtablewlistswthewtemperaturesw(inwdegreeswFahrenheit)wofwessentialwworkersw
enteringwawmedicalwfacility.
Temperature
(inwdegreeswF
EssentialwWorker ahrenheit)
Sam 99.4
Betty 98.0
Lateshia 98.9
Amani 98.3
Connor 97.6
Vincent 99.6
Maria 98.0
4) Whatwiswthewvariablewforwthiswdatawset
?wAnswer:w Temperature
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw008
5) Howwmanywobservationswarewinwthiswdatawset
?wAnswer:w 7
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw009
6) Howwmanywelementswdoeswthiswdatawsetwcontain
?wAnswer:w 7
Diff:w1
LO:w 1.2.0wDemonstratewanwunderstandingwofwthewbasicwtermswusedwinwstatistics.wSect
ion:w 1.2wBasicwTerms
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw010
1.3 TypeswofwVariables
1) Awquantitativewvariablewiswthewonlywtypewofwvariablewthatwcan:
A) assumewnumericwvalueswforwwhichwarithmeticwoperationswmakewsense
B) bewgraphed
C) bewusedwtowpreparewtables
D) havewnowintermediatewvalues
wAnswer:w A
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
3
, QuestionwTitle:w w Chapterw01,wTestbankwQuestionw01
1
2) Awdiscretewvariablewiswawvariablewthatwcanwassume:
A) categoricalwvalueswonly
B) awcountablewsetwofwvalueswonly
C) anwuncountablewsetwofwvalues
D) non-
numericalwvalueswAnswe
r:w B
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw012
3) Awcontinuouswvariablewiswawvariablewthatwcanwassume:
A) categoricalwvalueswonly
B) awcountablewsetwofwvalueswonly
C) anywvaluewinwanwinterval
D) non-
numericalwvalueswAnswe
r:w C
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw013
4) Awqualitativewvariablewiswawvariablewthat:
A) canwassumewnumericalwvalues
B) cannotwbewgraphed
C) canwassumewanwuncountablewsetwofwvalues
D) cannotwbewmeasuredwnumerically
wAnswer:w D
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw014
5) Iswthew"sizewofwawuniversity'swenrollmentwincreasewfromwlastwyearwtowthiswyear"wanwexamplew
ofwqualitativeworwquantitativewdata?
Answer:w QuantitativewDi
ff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
s.wSection:w 1.3wTypeswofwVariables
QuestionwTitle:w w Chapterw01,wTestbankwQuestionw015
6) Iswthewvariablew"lengthswofwtop-
tenwhitwsongs"wdiscreteworwcontinuous?wAnswer:w Continuous
Diff:w1
LO:w 1.3.0wDemonstratewanwunderstandingwofwthewtypeswofwvariableswusedwinwstatistic
4
