TEST BANK x xx
x x
EssentialxStatisticsx3rx 1x
, FULL TEST BANK!!! x x x
Examx
x
Namex xx
x
x
MULTIPLExCHOICE.xChoosexthexonexalternativexthatxbestxcompletesxthexstatementxorxanswersxthexquestion.x
x
Solvexthexproblem.x
1)xInxaxsamplexofx775xseniorxcitizens,xapproximatelyx67%xsaidxthatxtheyxhadxseenxaxtelevisionx1)xxx
xxcommercialxforxlifexinsurance.xAboutxhowxmanyxseniorxcitizensxisxthis?x
A)xNotxenoughxinformationxavailable.x B)x519x
C)x67x D)x256x
Answer:xBx
x
x
2) A two-way table could be used for which of the following pairs of variables?
x x x x x x x x x x x x x x
2)xxxx x
A)xGenderxandxagex B)xAgexandxfavoritexclassx
C)xGenderxandxfavoritexclassx D)xAgexandxheightx
Answer:xCx
Indicatexwhetherxthexstudyxdescribedxisxanxobservationalxstudyxorxaxcontrolledxexperiment.x
3) "Peoplexwithxdiabetesxarexatxhigherxriskxforxcertainxcancersxthanxthosexwithoutxthexbloodxsugarx3)xxxxxdisease,xsug
gestsxaxnewxstudyxbasedxonxaxtelephonexsurveyxofxnearlyx400,000xadults."x
A) Controlledxexperimentx B)xObservationalxstudyx
Answer:xBx
SHORTxANSWER.xWritexthexwordxorxphrasexthatxbestxcompletesxeachxstatementxorxanswersxthexquestion.x
Answerxthexquestion.x
4) ThexnumberxofxclinicallyxobesexmenxinxStatexAxisx156,261xandxthexnumberxofxclinicallyxobesex4)xxxxxmenxinxStatexBxi
sx294,269.xSomeonexmakesxthexclaimxthatxthisxisxevidencexthatxmenxexercisexmorexinxStatexA.xWhatxinformationxisx
missingxthatxmightxcontradictxthisxclaim?x
Answer:xWexneedxtoxknowxthextotalxnumberxofxmenxinxStatexAxandxStatexBxsoxthatxaxcomparison
xcanxbexmadexofxthexpercentagexofxthexmenxinxeachxstatexthatxarexclinicallyxobese.xThere
xcouldxbexaxmuchxhigherxmalexpopulationxinxStatexBxthanxStatexA.xAlso,xassumptionsxa
boutxexercisexandxobesityxarexbeingxmade.x
x
MULTIPLExCHOICE.xChoosexthexonexalternativexthatxbestxcompletesxthexstatementxorxanswersxthexquestion.x
UsexthexdataxinxTablex1Axtoxanswerxthexquestion.x
x
EssentialxStatisticsx3rx 2x
, Note:x1xisxfemale,x0xisxmale.x
x
5) Supposexyouxwantedxtoxknowxwhetherxthexstudent'sxcommutexdistancexwasxassociatedxwithxthex5)xxx
xxstudent'sxlivingxsituation.xUsingxthexdataxtablexifxpossible,xwhichxvariablesxwouldxyouxuse?xA)xUsexCommutex
Distancex(Miles)xandxLivingxSituation.x
B) Dataxonxstudent'sxlivingxsituationxarexnotxincludedxinxthisxstudy.x
C) UsexCommutexDistancex(Miles)xandxCollegexUnitsxAcquired.x
D) UsexCollegexUnitsxAcquiredxandxLivingxSituation.xAnswer:xAx
Inxaxstudyxofx1350xelementaryxschoolxchildren,x118xoutxofxthex615xgirlsxinxthexstudyxsaidxtheyxwantxtoxbexaxteacherxwhenxt
heyxgrowxup.x
x
6)xWhatxpercentxofxgirlsxwantxtoxbexaxteacherxwhenxtheyxgrowxup?x 6)x x
A)x45.6%x B)x80.8%x C)x8.7%x D)x19.2%x
Answer:xDx
x
Determinexifxthexfollowingxscenarioxisxanxobservationalxstudyxorxaxcontrolledxexperiment.x
7) Axdoctorxisxinterestedxinxdeterminingxwhetherxaxcertainxmedicationxincreasesxthexriskxofxhighxbloodx7)xxxxx
pressure.xHexrandomlyxselectsx100xpeoplexforxhisxstudyx-
x50xwhoxwillxtakexthexmedication,xandx50xxwhoxwillxtakexaxplacebo.xHexchecksxthexpatients'xbloodxpressure
sxweeklyxforxsixxmonths.x
A)xObservationalxstudyx B)xNeitherx C)xControlledxexperimentx x
x
8) The xnumber xof xparents xwho xattended xparent xteacher xconferences xatxaxlocal xelementary xschool xis xan x
Answer:xCx x
x
Solvexthexproblem.x
8) examplexofxwhatxtypexofxvariable?x
A)xNumericalxvariablex B)xCategoricalxvariablex C)xNeitherx
Answer:xAx
EssentialxStatisticsx3rx 3x
,
x x
EssentialxStatisticsx3rx 1x
, FULL TEST BANK!!! x x x
Examx
x
Namex xx
x
x
MULTIPLExCHOICE.xChoosexthexonexalternativexthatxbestxcompletesxthexstatementxorxanswersxthexquestion.x
x
Solvexthexproblem.x
1)xInxaxsamplexofx775xseniorxcitizens,xapproximatelyx67%xsaidxthatxtheyxhadxseenxaxtelevisionx1)xxx
xxcommercialxforxlifexinsurance.xAboutxhowxmanyxseniorxcitizensxisxthis?x
A)xNotxenoughxinformationxavailable.x B)x519x
C)x67x D)x256x
Answer:xBx
x
x
2) A two-way table could be used for which of the following pairs of variables?
x x x x x x x x x x x x x x
2)xxxx x
A)xGenderxandxagex B)xAgexandxfavoritexclassx
C)xGenderxandxfavoritexclassx D)xAgexandxheightx
Answer:xCx
Indicatexwhetherxthexstudyxdescribedxisxanxobservationalxstudyxorxaxcontrolledxexperiment.x
3) "Peoplexwithxdiabetesxarexatxhigherxriskxforxcertainxcancersxthanxthosexwithoutxthexbloodxsugarx3)xxxxxdisease,xsug
gestsxaxnewxstudyxbasedxonxaxtelephonexsurveyxofxnearlyx400,000xadults."x
A) Controlledxexperimentx B)xObservationalxstudyx
Answer:xBx
SHORTxANSWER.xWritexthexwordxorxphrasexthatxbestxcompletesxeachxstatementxorxanswersxthexquestion.x
Answerxthexquestion.x
4) ThexnumberxofxclinicallyxobesexmenxinxStatexAxisx156,261xandxthexnumberxofxclinicallyxobesex4)xxxxxmenxinxStatexBxi
sx294,269.xSomeonexmakesxthexclaimxthatxthisxisxevidencexthatxmenxexercisexmorexinxStatexA.xWhatxinformationxisx
missingxthatxmightxcontradictxthisxclaim?x
Answer:xWexneedxtoxknowxthextotalxnumberxofxmenxinxStatexAxandxStatexBxsoxthatxaxcomparison
xcanxbexmadexofxthexpercentagexofxthexmenxinxeachxstatexthatxarexclinicallyxobese.xThere
xcouldxbexaxmuchxhigherxmalexpopulationxinxStatexBxthanxStatexA.xAlso,xassumptionsxa
boutxexercisexandxobesityxarexbeingxmade.x
x
MULTIPLExCHOICE.xChoosexthexonexalternativexthatxbestxcompletesxthexstatementxorxanswersxthexquestion.x
UsexthexdataxinxTablex1Axtoxanswerxthexquestion.x
x
EssentialxStatisticsx3rx 2x
, Note:x1xisxfemale,x0xisxmale.x
x
5) Supposexyouxwantedxtoxknowxwhetherxthexstudent'sxcommutexdistancexwasxassociatedxwithxthex5)xxx
xxstudent'sxlivingxsituation.xUsingxthexdataxtablexifxpossible,xwhichxvariablesxwouldxyouxuse?xA)xUsexCommutex
Distancex(Miles)xandxLivingxSituation.x
B) Dataxonxstudent'sxlivingxsituationxarexnotxincludedxinxthisxstudy.x
C) UsexCommutexDistancex(Miles)xandxCollegexUnitsxAcquired.x
D) UsexCollegexUnitsxAcquiredxandxLivingxSituation.xAnswer:xAx
Inxaxstudyxofx1350xelementaryxschoolxchildren,x118xoutxofxthex615xgirlsxinxthexstudyxsaidxtheyxwantxtoxbexaxteacherxwhenxt
heyxgrowxup.x
x
6)xWhatxpercentxofxgirlsxwantxtoxbexaxteacherxwhenxtheyxgrowxup?x 6)x x
A)x45.6%x B)x80.8%x C)x8.7%x D)x19.2%x
Answer:xDx
x
Determinexifxthexfollowingxscenarioxisxanxobservationalxstudyxorxaxcontrolledxexperiment.x
7) Axdoctorxisxinterestedxinxdeterminingxwhetherxaxcertainxmedicationxincreasesxthexriskxofxhighxbloodx7)xxxxx
pressure.xHexrandomlyxselectsx100xpeoplexforxhisxstudyx-
x50xwhoxwillxtakexthexmedication,xandx50xxwhoxwillxtakexaxplacebo.xHexchecksxthexpatients'xbloodxpressure
sxweeklyxforxsixxmonths.x
A)xObservationalxstudyx B)xNeitherx C)xControlledxexperimentx x
x
8) The xnumber xof xparents xwho xattended xparent xteacher xconferences xatxaxlocal xelementary xschool xis xan x
Answer:xCx x
x
Solvexthexproblem.x
8) examplexofxwhatxtypexofxvariable?x
A)xNumericalxvariablex B)xCategoricalxvariablex C)xNeitherx
Answer:xAx
EssentialxStatisticsx3rx 3x
,
