Free WGU Data-Driven-Decision-Making Exam Questions

Question 1

What is the formula for calculating a simple index number?

A : The current price divided by the base year’s price times 100

B : The base year’s price divided by the current price times 100

C : The base year’s price divided by the current price

D : The current price divided by the base year’s price

Answer: A

Question 2

When researchers are studying the effect of new drug treatments on patients, bias can be introduced by patients if they are aware of who receives the placebo. Which type of research design eliminates this type of bias?

A : Observational study

B : Prospective cohort study

C : Time series study

D : Blind study

Answer: D

Question 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 faulty calibration in the data collection.

C : There is response bias in the data.

D : There is conscious bias in the data.

Answer: A

Question 4

How is a cause-and-effect diagram used?

A : To assign blame for manufacturing problems

B : To brainstorm possible root causes for an intermittency problem

C : As a financial risk calculation tool for a new product release

D : As a software tool to automatically generate a business process diagram

Answer: B

Question 5

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 faulty calibration in the data collection.

C : There is response bias in the data.

D : There is conscious bias in the data.

Answer: A