Test Bank For Statistics Unlocking the Power of Data, 23rd Edition All Chapters - 9781119674160.pdf

Filef:fChf07,fChapterf7fTestfBank
Numbers Of Questions : 85
f f f f




True/False

1. Savingftimefandfmoneyfarefreasonsftoftakefafsamplefratherfthanfdofafcensus.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fEasy
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.

2. Infsomefsituations,fsamplingfmayfbefthefonlyfoptionfbecausefthefpopulationfisfinaccessible.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fEasy
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



3. Afpopulationflist,fmap,fdirectory,forfotherfsourcefusedftofrepresentfthefpopulationffromfwhichfafsa
mplefisftakenfisfcalledfthefcensus.

Ans:fFalse
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



4. Infafrandomfsamplingftechnique,feveryfunitfoffthefpopulationfhasfafrandomlyfvaryingfchanceforfp
robabilityfoffbeingfincludedfinfthefsample.

, Ans:fFalse
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



5. Clusterf(orfarea)fsamplingfisfaftypefoffrandomfsamplingftechnique.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



6. Systematicfsamplingfisfaftypefoffnonrandomfsamplingftechnique.

Ans:fFalse
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



7. Afmajorflimitationfoffnonrandomfsamplesfisfthatftheyfarefnotfappropriatefforfmostfstatisticalfmet
hods.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.

,8. Thefdirectoryforfmapffromfwhichfafsamplefisftakenfisfcalledfthefframe.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



9. Theftwofmajorfcategoriesfoffsamplingfmethodsfarefproportionatefandfdisproportionatefsa
mpling.

Ans:fFalse
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fEasy
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



10. Iffeveryfunitfoffthefpopulationfhasfthefsamefprobabilityfoffbeingfselectedftofthefsample,fthenfthefr
esearcherfisfprobablyfconductingfrandomfsampling.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



11. Withfclusterfsampling,ftherefisfhomogeneityfwithinfafsubgroupforfstratum.

Ans:fFalse
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium

, LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.




12. IffafresearcherfselectsfeveryfkthfitemffromfafpopulationfoffNfitems,fthenfshefisflikelyfcon
ductingfafstratifiedfrandomfsampling.

Ans:fFalse
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



13. Iffeveryfunitfoffthefpopulationfhasfthefsamefprobabilityfoffbeingfselectedftofthefsample,fthenfthefr
esearcherfisfconductingfrandomfsampling.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fMedium
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.



14. Afnonrandomfsamplingftechniquefthatfisfsimilarftofstratifiedfrandomfsamplingfisfcalledfquotafsa
mpling.

Ans:fTrue
Response:fSeefsectionf7.1fSamplingfDi
fficulty:fEasy
LearningfObjective:f7.1:fContrastfsamplingftofcensusfandfdifferentiatefamongfdifferentfmethodsfoffs
ampling,fwhichfincludefsimple,fstratified,fsystematic,fandfclusterfrandomfsampling;fandfconvenienc
e,fjudgment,fquota,fandfsnowballfnonrandomfsampling,fbyfassessingfthefadvantagesfassociatedfwithf
each.