Wgu C207 Data-Driven Decision Making Objective Assessment Detailed Questions And Answers

WGU C207 DATA-DRIVEN DECISION MAKING
OBJECTIVE ASSESSMENT DETAILED QUESTIONS
AND ANSWERS


1. Analyticsisabroadtermthatreferstoavarietyoftoolsthatinformman- agerial
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rdecisions.
Which term can be used to describe managerial decisions?
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a. Prescriptive
b. Predictive
c. Paretochart r




d. Biased ANS:a r r




2. Whataretworeasonsfortheincreasinguseofanalyticsinorganizational
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decision making?
r r




a. Relativelylowercostof computerstorage r r r r r




b. Loweravailabilityofstatisticalexperts
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c. Higher cost of obtaining data r r r r




d. Highercomputerprocessingpower ANS:a,dr r r r r r




3. Inwhatwaydoesprobabilitytheoryinformdecision-makingformanagers?
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a. By quantifying risk
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b. By quantifying data
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c. By quantifying quality
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,d. By quantifyingcosts ANS:a
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4. WhichtypeofdataaretheOlympicmedalsofgold,silver,andbronze
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examples of?
r r




a. Nominal data r




b. Ordinaldata r




c. Intervaldata r




d. Ratio data ANS:b r r r




5. Whatare twoaspects of dataquality management?
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a. It calculates spurious data.
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b. It reduces the amount of incomplete data.
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c. Itmonitors data input rates.
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d. Itcleansdata. ANS:b,d
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6. Whichtwoattributesindicatepotentialdataqualityissueswhenevaluatinga set
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of nominal data?
r r r




a. Outlier data r




b. Missing data r




c. Out-of-range data r




d. Misspelleddata ANS:b,d r r r r




7. Whenconductingastudythatmeasuresanindividual'sweight,allscales are
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calibrated prior to use in measurement.Which type of error should this
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r r

, proceduresignificantlyreduce? r r




a. Systematic error r




b. Omission error r




c. Random error r




d. Informationerror ANS:a r r r




8. Anadvertisingmanagercreatesaresearchstudybypresentinglow,medi- um,
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orhighfrequencyofthesameadinmatchedmarkets.Themanagerthen reports on
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sales in each market location.What is the term for the different sales in this study?
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a. Theexperimentalunit r r




b. The treatment r




c. The response variable r r




d. The intervention ANS:c r r r




9. A healthcare study follows a particular sample over time to identify how the
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health habits of teenagers impact their likelihood of acquiring various diseases
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later in their life in the hope that the healthcare organization will be abletocreate
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earlypreventionprograms.Whichtypeofresearchdesigndoes this study
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describe?
r




a. Doubleblindstudy r r




b. Systematic study r




c. Cohort study r




d. Experimentalstudy ANS:c r r r




10. Severalmissingvaluesinaparticularfieldinadatasetwereobserved.The r r r r r r r r r r r r




likelihoodofarecordhavingamissingvalueiscorrelatedtoanothervariable in the
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dataset.Which two types of error might be introduced into the dataset if the
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removed record included missing values?
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a. Systematic error r




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r r