Test Bank for Business Statistics Communicating with Numbers, 13th Edition by Jaggia - Chap 16 to 20.pdf

Filer:rChr07,rChapterr7rTestrBank
Numbers Of Questions : 85
r r r r




True/False

1. Savingrtimerandrmoneyrarerreasonsrtortakerarsamplerratherrthanrdor arcensus.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rEasy
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.

2. Inrsomersituations,rsamplingrmayrbertheronlyroptionrbecausertherpopulationrisrinaccessible.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rEasy
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



3. Arpopulationrlist,rmap,rdirectory,rorrotherrsourcerusedrtorrepresentrtherpopulationrfromrwhichrarsa
mplerisrtakenrisrcalledrthercensus.

Ans:rFalse
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



4. Inrarrandomrsamplingrtechnique,reveryrunitrofrtherpopulationrhasrarrandomlyrvaryingrchancerorrp
robabilityrofrbeingrincludedrinrthersample.

, Ans:rFalse
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



5. Clusterr(orrarea)rsamplingrisrartyperofrrandomrsamplingrtechnique.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



6. Systematicrsamplingrisrartyperofrnonrandomrsamplingrtechnique.

Ans:rFalse
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



7. Armajorrlimitationrofrnonrandomrsamplesrisrthatrtheyrarernotrappropriaterforrmostrstatisticalrmet
hods.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.

,8. Therdirectoryrorrmaprfromrwhichrarsamplerisrtakenrisrcalledrtherframe.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



9. Thertwormajorrcategoriesrofrsamplingrmethodsrarerproportionaterandrdisproportionatersa
mpling.

Ans:rFalse
Response:rSeersectionr7.1rSamplingrDi
fficulty:rEasy
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



10. Ifreveryrunitrofrtherpopulationrhasrthersamerprobabilityrofrbeingrselectedrtorthersample,rthenrtherr
esearcherrisrprobablyrconductingrrandomrsampling.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



11. Withrclusterrsampling,rthererisrhomogeneityrwithinrarsubgrouprorrstratum.

Ans:rFalse
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium

, LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.




12. IfrarresearcherrselectsreveryrkthritemrfromrarpopulationrofrNritems,rthenrsherisrlikelyrcon
ductingrarstratifiedrrandomrsampling.

Ans:rFalse
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



13. Ifreveryrunitrofrtherpopulationrhasrthersamerprobabilityrofrbeingrselectedrtorthersample,rthenrtherr
esearcherrisrconductingrrandomrsampling.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rMedium
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.



14. Arnonrandomrsamplingrtechniquerthatrisrsimilarrtorstratifiedrrandomrsamplingrisrcalledrquotarsa
mpling.

Ans:rTrue
Response:rSeersectionr7.1rSamplingrDi
fficulty:rEasy
LearningrObjective:r7.1:rContrastrsamplingrtorcensusrandrdifferentiateramongrdifferentrmethodsrofrs
ampling,rwhichrincludersimple,rstratified,rsystematic,randrclusterrrandomrsampling;randrconvenienc
e,rjudgment,rquota,randrsnowballrnonrandomrsampling,rbyrassessingrtheradvantagesrassociatedrwithr
each.