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. Analytics is a broad term that refers to a variety of tools that inform man- agerial
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decisions.
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Which term can be used to describe managerial decisions?
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a. Prescriptive
b. Predictive
c. Paretochart ,/




d. Biased ANS:a ,/ ,/




2. What are two reasons for the increasing use of analytics in organizational
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decision making?
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a. Relatively lower cost of computer storage ,/ ,/ ,/ ,/ ,/




b. Lower availability of statistical experts
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c. Higher cost of obtaining data ,/ ,/ ,/ ,/




d. Higher computer processing power ANS:a, d
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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 quantifying costs ANS:a
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4. Which type of data are the Olympic medals of gold,silver,and bronze
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examples of?
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a. Nominal data ,/




b. Ordinal data ,/




c. Interval data ,/




d. Ratio data ANS:b ,/ ,/ ,/




5. What are two aspects of data quality 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. It monitors data input rates.
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d. It cleans data. ANS:b, d
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6. Whichtwoattributesindicatepotentialdataqualityissueswhenevaluating a set
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of nominal data?
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a. Outlier data ,/




b. Missing data ,/




c. Out-of-range data ,/




d. Misspelled data ANS:b, d ,/ ,/ ,/ ,/




7. When conducting a study that measures an individual's weight,all scales are
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calibrated prior to use in measurement.Which type of error should this
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, procedure significantly reduce? ,/ ,/




a. Systematic error ,/




b. Omission error ,/




c. Random error ,/




d. Information error ANS:a ,/ ,/ ,/




8. An advertising manager creates a research study by presenting low,medi- um,
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or high frequency of the same ad in matched markets.The manager then reports
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on sales in each market location.What is the term for the different sales in this
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study?
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a. The experimental unit ,/ ,/




b. The treatment ,/




c. The response variable ,/ ,/




d. The intervention ANS:c ,/ ,/ ,/




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?
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a. Double blind study ,/ ,/




b. Systematic study ,/




c. Cohort study ,/




d. Experimental study ANS:c ,/ ,/ ,/




10. Severalmissingvaluesinaparticularfieldinadatasetwereobserved.The ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/




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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