Test Bank for Business Statistics Communicating with Numbers, 25th Edition by Jaggia - Chap 16 to 20.pdf

2016



Basic Business Statistics
f f




Concepts and Application – 13th edition
f f f f f




Test Bank f




Cairo Universityf



Faculty of Commerce
f f Math & Insurance
fffffffffffffffffffffffffffffffffffff f f



Departmentf



1/1/2016

, ChapterfOne:fDefiningfandfcollectingfData

1. Whichfofftheffollowingfisfafcontinuousfquantitativef(numerical)fvariable?

a) Theftimefitftakesftofdownloadfthefupdatefforfyourfne b) Thefgenderfoffafstudent
wfmobilefapp

c) Thefnumberfofftextfmessagesfthatfhavefbeenfsentflast d) Thefnumberfoffitemsfpurc
fweek hased


2. Whichfofftheffollowingfisfafcontinuousfquantitativef(numerical)fvariable?
a) Thefcolorfoffafstudent’ b) Thefnumberfoffemployeesfoffanfinsurancefcompany
sfeyes
c) Thefamountfoffmilkfinf d) Thefnumberfoffgallonsfoffmilkfsoldfatftheflocalfgroceryfst
af2-literfcarton orefyesterday


3. Whichfofftheffollowingfisfafdiscretefquantitativef(numerical)fvariable?

a)fThefDowfJonesfIndustrialfaverage b)fThefvolumefoffwaterfreleasedffromfafdam
c)fThefdistancefyoufdrovefyesterday d)fThefnumberfoffemployeesfoffanfinsurancefcompan
. y

4. Infstatistics,fafpopulationfconsistsfof:f
b)ffallfpeopleflivingfinfthefareafunderfs
a) allfpeopleflivingfinfafcountry
tudy
c)ffallfsubjectsforfobjectsfwhosefcharacteristicsfarefb d)ffafselectionfoffaflimitedfnumberfoff
eingfstudied elements


5. Infstatistics,fwefdefinefafsamplefas:
a) peopleflivingfinfonefcityfonly b) allfitemsfunderfinvestigation
c) theftargetfpopulation d) afportionfoffthefpopulation

6. ResearchersfarefconcernedfthatfthefweightfoffthefaveragefAmericanfschoolfchildfisfincreasi
ngfimplying,famongfotherfthings,fthatfchildren’sfclothingfshouldfbefmanufacturedfandfmar
ketedfinflargerfsizes.fIffXfisfthefweightfoffschoolfchildrenfsampledfinfafnationwidefstudy,fthen
fXfisfanfexamplefof:




2

, a)fafcategoricalfvariable. b)fafdiscretefvariable.
c)fafcontinuousfvariable. d)faftablefoffrandomfnumbers.


7. Thefclassificationfoffstudentfclassfdesignationf(freshman,fsophomore,fjunior,fsenior)fisfanfe
xamplefof:
a)fafcategoricalfvariable. b)fafdiscretefvariable.
c)fafcontinuousfvariable. d)faftablefoffrandomfnumbers.

8. thefpossiblefresponsesftofthefquestionf"Infwhichfyearfwerefyoufborn?"farefvaluesffromfa:
a)fDiscretefnumericalfvariable b)fContinuousfnumericalfvariable
c)fCategoricalfvariable. d)fTablefoffrandomfnumbers.

9. thefpossiblefresponsesftofthefquestionf"Whatfisfyourfannualfincomefroundedftofthefnearest
fthousands?"fresultfin


a)fafnominalfscalefvariable. b)fanfordinalfscalefvariable.
c)fanfintervalfscalefvariable. d)fafratiofscalefvariable.

10. thefpossiblefresponsesftofthefquestionf"Howfwouldfyoufratefthefqualityfoffyourfpurchasefex
periencefwithf1f=fexcellent,f2f=fgood,f3f=fdecent,f4f=fpoor,f5f=fterrible?"fresultfin
a)fafnominalfscalefvariable. b)fanfordinalfscalefvariable.
c)fanfintervalfscalefvariable. d)fafratiofscalefvariable.

11. fthefpossiblefresponsesftofthefquestionf"Outfoffaf100fpointfscorefwithf100fbeingfthefhighestf
andf0fbeingftheflowest,fwhatfisfyourfsatisfactionflevelfwithfthefBlu-
rayfplayerfthatfyoufpurchased?"fresultfin
a) afnominalfscalefvariable. b) anfordinalfscalefvariable.

c) anfintervalfscalefvariable. d) afratiofscalefvariable.



12. Anfinsurancefcompanyfevaluatesfmanyfnumericalfvariablesfaboutfafpersonfbeforefdecidingf
onfanfappropriatefratefforfautomobilefinsurance.fThefnumberfoffclaimsfafpersonfhasfmadefi
nftheflastf3fyearsfisfanfexamplefoffaf_______fnumericalfvariable.
a) Discrete b) Continuous

c) Categorical d) Ordinal



13. Afdiscretefvariablefisfafvariablefthatfcanfassume:

a)ffcategoricalfvaluesfonly b)fanfuncountablefsetfoffvalues
3

, c)afcountablefsetfoffvaluesfonly d)ffnon-numericalfvalues

14. Afcontinuousfvariablefisfafvariablefthatfcanfassume:
a)fcategoricalfvaluesfonly b)ffanfuncountablefsetfoffvalues
c)ffafcountablefsetfoffvaluesfonly d)ffnon-numericalfvalues

15. AfWallfStreetfJournalfpollfaskedf2,150fadultsfinfthefU.S.fafseriesfoffquestionsftoffindfoutftheirf
viewfonfthefU.S.feconomy.
thefpopulationfoffinterestfis
a)fallfthefmalesflivingfinfthefU.S.fwhenfthefpoll b)fallftheffemalesflivingfinfthefU.S.fwhenfthefpoll
edfwasftaken. edfwasftaken.
c)fallfthefadultsflivingfinfthefU.S.fwhenfthefpollf d)fallfthefpeopleflivingfinfthefU.S.fwhenfthefpollf
wasftaken. wasftaken.

16. AfWallfStreetfJournalfpollfaskedf2,150fadultsfinfthefU.S.fafseriesfoffquestionsftofffindfoutftheir
fviewfonfthefU.S.feconomy,fthef2,150fadultsfmakefup


a)fthefpopulation b)fthefsample
c)fthefprimaryfdatafsource d)fthefsecondaryfdatafsource

17. thefpossiblefresponsesftofthefquestionf"Arefyouf1.fCurrentlyfemployed,f2.fUnemployedfbutf
activelyflookingfforfjob,f3.fUnemployedfandfquitflookingfforfjob?"farefvaluesffromfa
a)fdiscretefnumericalfvariable. b)fcontinuousfnumericalfvariable.
c)fcategoricalfvariable. d)ftablefoffrandomfnumbers.

18. Whichfofftheffollowingfisfmostflikelyfafpopulationfasfopposedftofafsample?
a)frespondentsftofafnewspaperfsurvey. b)ftheffirstf5fstudentsfcompletingfanfassignment.
c)feveryfthirdfpersonftofarrivefatfthefbank. d)fregisteredfvotersfinfafcounty.

19. AfstudyfisfunderfwayfinfYosemitefNationalfForestftofdeterminefthefadultfheightfoffAmericanf
pineftrees.fSpecifically,fthefstudyfisfattemptingftofdeterminefwhatffactorsfaidfaftreefinfreach
ingfheightsfgreaterfthanf60ffeetftall.fItfisfestimatedfthatfthefforestfcontainsf25,000fadultfAm
ericanfpines.fThefstudyfinvolvesfcollectingfheightsffromf250frandomlyfselectedfadultfAmeri
canfpineftreesfandfanalyzingfthefresults.fIdentifyfthefpopulationffromfwhichfthefstudyfwasfs
ampled.
a)fThef250frandomlyfselectedfadultfAmericanfpi b)fThef25,000fadultfAmericanfpineftreesfinfth
neftrees. efforest.
c)fAllfthefadultfAmericanfpineftreesftallerfthanf6 d)fAllfAmericanfpineftrees,foffanyfage,finftheff
0ffeet. orest.




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