商务决策与分析选择题.docx
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商务决策与分析选择题.docx
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商务决策与分析选择题
BusinessDecisionAnalysis
ReviewSections-Choice
Chapter01
Whichofthefollowingtermsisinterchangeablewithquantitativeanalysis?
A)managementscience
B)economics
C)financialanalysis
D)statistics
E)Noneoftheabove
Whoiscreditedwithpioneeringtheprinciplesofthescientificapproachtomanagement?
A)AdamSmith
B)HenriFayol
C)JohnR.Locke
D)FrederickW.Taylor
E)CharlesBabbage
A(n)________isarepresentationofrealityorareal-lifesituation.
A)objective
B)model
C)analysis
D)algorithm
E)Noneoftheabove
Asetoflogicalandmathematicaloperationsperformedinaspecificsequenceiscalleda(n)
A)completeenumeration.
B)diagnosticanalysis.
C)algorithm.
D)objective.
E)Noneoftheabove
Theabilitytoexaminethevariabilityofasolutionduetochangesintheformulationofaproblemisanimportantpartoftheanalysisoftheresults.Thistypeofanalysisiscalled________analysis.
A)sensitivity
B)implicit
C)normal
D)scale
E)objective
Whichofthefollowingisnotoneofthestepsinthequantitativeanalysisapproach?
A)DefiningtheProblem
B)DevelopingaSolution
C)Observingahypothesis
D)TestingaSolution
E)ImplementingtheResults
Theconditionofimproperdatayieldingmisleadingresultsisreferredtoas
A)garbagein,garbageout.
B)break-evenpoint.
C)uncontrollablevariable.
D)postoptimality.
E)Noneoftheabove
Expressingprofitsthroughtherelationshipamongunitprice,fixedcosts,andvariablecostsisanexampleof
A)asensitivityanalysismodel.
B)aquantitativeanalysismodel.
C)apostoptimalityrelationship.
D)aparameterspecificationmodel.
E)Noneoftheabove
Chapter02
Theclassicalmethodofdeterminingprobabilityis
A)subjectiveprobability.
B)marginalprobability.
C)objectiveprobability.
D)jointprobability.
E)conditionalprobability.
Subjectiveprobabilityassessmentsdependon
A)thetotalnumberoftrials.
B)therelativefrequencyofoccurrence.
C)thenumberofoccurrencesoftheevent.
D)experienceandjudgment.
E)Noneoftheabove
Iftwoeventsaremutuallyexclusive,then
A)theirprobabilitiescanbeadded.
B)theymayalsobecollectivelyexhaustive.
C)thejointprobabilityisequalto0.
D)ifoneoccurs,theothercannotoccur.
E)Alloftheabove
A________isanumericalstatementaboutthelikelihoodthataneventwilloccur.
A)mutuallyexclusiveconstruct
B)collectivelyexhaustiveconstruct
C)variance
D)probability
E)standarddeviation
AconditionalprobabilityP(B|A)isequaltoitsmarginalprobabilityP(B)if
A)itisajointprobability.
B)statisticaldependenceexists.
C)statisticalindependenceexists.
D)theeventsaremutuallyexclusive.
E)P(A)=P(B).
TheequationP(A|B)=P(AB)/P(B)is
A)themarginalprobability.
B)theformulaforaconditionalprobability.
C)theformulaforajointprobability.
D)onlyrelevantwheneventsAandBarecollectivelyexhaustive.
E)Noneoftheabove
Bayes'theoremisusedtocalculate
A)revisedprobabilities.
B)jointprobabilities.
C)priorprobabilities.
D)subjectiveprobabilities.
E)marginalprobabilities.
IfP(A)=0.3,P(B)=0.2,P(AandB)=0.0,whatcanbesaidabouteventsAandB?
A)Theyareindependent.
B)Theyaremutuallyexclusive.
C)Theyareposteriorprobabilities.
D)Noneoftheabove
E)Alloftheabove
"TheprobabilityofeventB,giventhateventAhasoccurred"isknownasa________probability.
A)continuous
B)marginal
C)simple
D)joint
E)conditional
WhendoesP(A|B)=P(A)?
A)whenAandBaremutuallyexclusive
B)whenAandBarestatisticallyindependent
C)whenAandBarestatisticallydependent
D)whenAandBarecollectivelyexhaustive
E)whenP(B)=0
Chapter03
Ananalyticandsystematicapproachtothestudyofdecisionmakingisreferredtoas
A)decisionmakingunderrisk.
B)decisionmakingunderuncertainty.
C)decisiontheory.
D)decisionanalysis.
E)decisionmakingundercertainty.
Expectedmonetaryvalue(EMV)is
A)theaverageorexpectedmonetaryoutcomeofadecisionifitcanberepeatedalargenumberoftimes.
B)theaverageorexpectedvalueofthedecision,ifyouknowwhatwouldhappenaheadoftime.
C)theaverageorexpectedvalueofinformationifitwerecompletelyaccurate.
D)theamountyouwouldlosebynotpickingthebestalternative.
E)adecisioncriterionthatplacesanequalweightonallstatesofnature.
Whichofthefollowingisnotconsideredacriteriafordecisionmakingunderuncertainty?
A)optimistic
B)pessimistic
C)equallylikely
D)randomselection
E)minimaxregret
Apessimisticdecisionmakingcriterionis
A)maximax.
B)equallylikely.
C)maximin.
D)decisionmakingundercertainty.
E)minimaxregret.
Whichofthefollowingistrueabouttheexpectedvalueofperfectinformation?
A)Itistheamountyouwouldpayforanysamplestudy.
B)ItiscalculatedasEMVminusEOL.
C)ItiscalculatedasexpectedvaluewithperfectinformationminusmaximumEMV.
D)Itistheamountchargedformarketingresearch.
E)Noneoftheabove
Whichofthefollowingisnotacharacteristicofagooddecision?
A)basedonlogic
B)considersallavailabledata
C)considersallpossiblealternatives
D)employsappropriatequantitativetechniques
E)alwaysresultsinafavorableoutcome
Thefollowingisapayofftablegivingprofitsforvarioussituations.
Whatdecisionwouldanoptimistmake?
A)Alternative1
B)Alternative2
C)Alternative3
D)DoNothing
E)StateofNatureA
Thefollowingisapayofftablegivingprofitsforvarioussituations.
Whatdecisionwouldapessimistmake?
A)Alternative1
B)Alternative2
C)Alternative3
D)DoNothing
E)StateofNatureA
Thefollowingisanopportunitylosstable.
Whatdecisionshouldbemadebasedontheminimaxregretcriterion?
A)Alternative1
B)Alternative2
C)Alternative3
D)StateofNatureA
E)Doesnotmatter
Thefollowingisanopportunitylosstable.
Whatdecisionshouldbemadebasedontheminimaxregretcriterion?
A)Alternative1
B)Alternative2
C)Alternative3
D)StateofNatureC
E)Doesnotmatter
Thefollowingisapayofftable.
Whatdecisionshouldbemadebasedontheminimaxregretcriterion?
A)Alternative1
B)Alternative2
C)Alternative3
D)StateofNatureC
E)Doesnotmatter
Thefollowingisapayofftable.
Whatdecisionshouldbemadebasedontheminimaxregretcriterion?
A)Alternative1
B)Alternative2
C)Alternative3
D)StateofNatureC
E)Doesnotmatter
Chapter04
Whichofthefollowingstatementsistrueregardingascatterdiagram?
A)Itprovidesverylittleinformationabouttherelationshipbetweentheregressionvariables.
B)Itisaplotoftheindependentanddependentvariables.
C)Itisalinechartoftheindependentanddependentvariables.
D)Ithasavaluebetween-1and+1.
E)Itgivesthepercentofvariationinthedependentvariablethatisexplainedbytheindependentvariable.
Therandomerrorinaregressionequation
A)isthepredictederror.
B)includesbothpositiveandnegativeterms.
C)willsumtoalargepositivenumber.
D)isusedtheestimatetheaccuracyoftheslope.
E)ismaximizedinaleastsquaresregressionmodel.
Whichofthefollowingequalitiesiscorrect?
A)SST=SSR+SSE
B)SSR=SST+SSE
C)SSE=SSR+SST
D)SST=SSC+SSR
E)SSE=ActualValue-PredictedValue
Whichofthefollowingstatementsistrueaboutr2?
A)Itisalsocalledthecoefficientofcorrelation.
B)Itisalsocalledthecoefficientofdetermination.
C)ItrepresentsthepercentofvariationinXthatisexplainedbyY.
D)ItrepresentsthepercentofvariationintheerrorthatisexplainedbyY.
E)Itrangesinvaluefrom-1to+1.
Thecoefficientofdeterminationresultingfromaparticularregressionanalysiswas0.85.Whatwastheslopeoftheregressionline?
A)0.85
B)-0.85
C)0.922
D)Thereisinsufficientinformationtoanswerthequestion.
E)Noneoftheabove
Thediagrambelowillustratesdatawitha
A)negativecorrelationcoefficient.
B)zerocorrelationcoefficient.
C)positivecorrelationcoefficient.
D)correlationcoefficientequalto+1.
E)Noneoftheabove
Thecorrelationcoefficientresultingfromaparticularregressionanalysiswas0.25.Whatwasthecoefficientofdetermination?
A)0.5
B)-0.5
C)0.0625
D)Thereisinsufficientinformationtoanswerthequestion.
E)Noneoftheabove
Inagoodregressionmodeltheresidualplotshows
A)aconepattern.
B)anarchedpattern.
C)arandompattern.
D)anincreasingpattern.
E)adecreasingpattern.
Chapter05
Whichofthefollowingisnotclassifiedasaqualitativeforecastingmodel?
A)exponentialsmoothing
B)Delphimethod
C)juryofexecutiveopinion
D)salesforcecomposite
E)consumermarketsurvey
Ajudgmentalforecastingtechniquethatusesdecisionmakers,staffpersonnel,andrespondenttodetermineaforecastiscalled
A)exponentialsmoothing.
B)theDelphimethod.
C)juryofexecutiveopinion.
D)salesforcecomposite.
E)consumermarketsurvey.
Whichofthefollowingstatementsaboutscatterdiagramsistrue?
A)Timeisalwaysplottedonthey-axis.
B)Itcandepicttherelationshipamongthreevariablessimultaneously.
C)Itishelpfulwhenforecastingwithqualitativedata.
D)Thevariabletobeforecastedisplacedonthey-axis.
E)Itisnotagoodtoolforunderstandingtime-seriesdata.
Enrollmentinaparticularclassforthelastfoursemestershasbeen120,126,110,and130.Supposeaone-semestermovingaveragewasusedtoforecastenrollment(thisissometimesreferredtoasanaïveforecast).Thus,theforecastforthesecondsemesterwouldbe120,forthethirdsemesteritwouldbe126,a
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