WGU Data-Driven-Decision-Making

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WGU VPC2Data-Driven Decision MakingC207 Sample Questions:

1. A company runs a regression analysis to determine sales based on advertising expenditures, which can be shown in a linear equation as y = 2x + 25,000. The company plans to spend $20,000 on advertising.
Which sales figure should the company expect to generate based on the given equation?

A) $65,000
B) $75,000
C) $50,000
D) $40,000

2. Phone calls for a company are routed randomly to one of eight call centers. Six are based in the United States, and two are based in another country. What is the probability that an incoming call will be routed to a U.S.- based call center?

A) 75%
B) 33%
C) 25%
D) 67%

3. A researcher wants to estimate the average wholesale price of a gallon of gas in the United States. Several gas station owners along the East Coast are asked what price they pay wholesale for a gallon of gas. The researcher then averages these values for the sample mean price of a gallon of gas. Which problem would be discovered if this researcher's work were evaluated?

A) The sample data are not representative of the population.
B) There is conscious bias in the data.
C) There is faulty calibration in the data collection.
D) There is response bias in the data.

4. A political ballot gives voters the option to vote for one of three candidates. Eight voters cast their ballots.
Which statistical rule should be used to determine the possible voting outcomes?

A) Conditional probability
B) Multiplication principle
C) Combination
D) Bayes ' theorem

5. Which two types of graphs illustrate and analyze measurements or trends over time?
Choose 2 answers.

A) Check sheet
B) Pareto chart
C) Run chart
D) Control chart

Solutions: