Test Bank For Introduction to Business Analytics, 21st Edition All Chapters - 9781265454340.pdf

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CHh02h-hDescriptivehStatistics
MultiplehChoice

1. Ahquantityhofhinteresththathcanhtakehonhdifferenthvalueshishknownhasha(n)
a. variable. b.hparameter.
c.hsample. d.hobservation.
ANSWER: a
RATIONALE:
Ahcharacteristichorhahquantityhofhinteresththathcanhtakehonhdifferenthvalueshishknownhashah
variable.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: OVERVIEWhOFhUSINGhDATA:hDEFINITIONShANDhGOALS
QUESTIONhTYPE: MultiplehChoice
HAShVARIABLES: False
NATIONALhSTANDARDS:h UnitedhStatesh-hBUSPROG:hAnalytic
UnitedhStatesh-hDISC:h-hDescriptivehStatistics
KEYWORDS:
Bloom’s:hRemember
hDATEhCREATED:


1/23/2018h10:15hAM
hDATEhMODIFIED: 3/19/2018h9:53hAM

2. Ahsethofhvalueshcorrespondinghtohahsethofhvariableshishdefinedhasha(n)
a. quantity. b.hevent.
c.hfactor. d.hobservation.
ANSWER: d
RATIONALE: Anhobservationhishahsethofhvalueshcorrespondinghtohahsethofhvariables.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: OVERVIEWhOFhUSINGhDATA:hDEFINITIONShANDhGOALS
QUESTIONhTYPE: MultiplehChoice
HAShVARIABLES: False
NATIONALhSTANDARDS:h UnitedhStatesh-hBUSPROG:hAnalytic
UnitedhStatesh-hDISC:h-hDescriptivehStatistics
KEYWORDS:
Bloom’s:hRemember
hDATEhCREATED:


1/23/2018h10:15hAM
hDATEhMODIFIED: 3/19/2018h9:53hAM

3. Thehdifferencehinhahvariablehmeasuredhoverhobservationsh(time,hcustomers,hitems,hetc.)hishknownhas
a. observedhdifferences. b.hvariation.
c.hvariablehchange. d.hdescriptivehanalytics.
ANSWER: b
RATIONALE:
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CHh02h-hDescriptivehStatistics
Variationhishthehdifferencehinhahvariablehmeasuredhoverhobservationsh(time,hcustomers,hitems,h
etc.).
POINTS: 1
DIFFICULTY: Moderate
REFERENCES: OVERVIEWhOFhUSINGhDATA:hDEFINITIONShANDhGOALS
QUESTIONhTYPE: MultiplehChoice




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nuArD
syEte
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reCOM

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CHh02h-hDescriptivehStatistics

HAShVARIABLES: False
NATIONALhSTANDARDS:h UnitedhStatesh-hBUSPROG:hAnalytic
UnitedhStatesh-hDISC:h-hDescriptivehStatistics
KEYWORDS:
Bloom’s:hRemember
hDATEhCREATED:


1/23/2018h10:15hAM
hDATEhMODIFIED: 3/19/2018h9:53hAM

4. actshashahrepresentativehofhthehpopulation.
a. Thehvariable b.hThehvariance
c.hAhsample d.hAhrandomhvariable
ANSWER: c
RATIONALE:
Ahsubsethofhthehpopulationhishknownhashahsample,handhactshashahrepresentativehofhtheh
population.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: TYPEShOFhDATA
QUESTIONhTYPE: MultiplehChoice
HAShVARIABLES: False
NATIONALhSTANDARDS:h UnitedhStatesh-hBUSPROG:hAnalytic
UnitedhStatesh-hDISC:h-hDescriptivehStatistics
KEYWORDS:
Bloom’s:hRemember
hDATEhCREATED:


1/23/2018h10:15hAM
hDATEhMODIFIED: 3/19/2018h9:53hAM

5. Thehacthofhcollectinghdatahthatharehrepresentativehofhthehpopulationhdatahishcalled
a. randomhsampling. b.hsamplehdata.
c.hpopulationhsampling. d.hsourceshofhdata.
ANSWER: a
RATIONALE: Ahrepresentativehsamplehcanhbehgatheredhbyhrandomhsamplinghofhthehpopulationhdata.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: TYPEShOFhDATA
QUESTIONhTYPE: MultiplehChoice
HAShVARIABLES: False
NATIONALhSTANDARDS:h UnitedhStatesh-hBUSPROG:hAnalytic
UnitedhStatesh-hDISC:h-hDescriptivehStatistics
KEYWORDS:
Bloom’s:hRemember
hDATEhCREATED:


1/23/2018h10:15hAM
CopyrighthCengagehLearning.hPoweredhbyhCognero. Pageh2


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CHh02h-hDescriptivehStatistics
h DATEhMODIFIED: 3/19/2018h9:53hAM

6. Thehletterhgradesh(A,hB,hC,hD,hF)hofhbusinesshanalysishstudentsharehrecordedhbyhahprofessor.hThishvariable’shclassification
a. ishquantitativehdata. b.hcannothbehdetermined.
c.hishcategoricalhdata. d.hishtimehserieshdata.
ANSWER: c
RATIONALE: Ifharithmetichoperationshcannothbehperformedhonhthehdata,htheyharehconsideredhcategoricalhdata.




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