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WGU VPC2Data-Driven Decision MakingC207 Sample Questions:
1. 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) 33%
B) 25%
C) 67%
D) 75%
2. A nonprofit organization is asking for donations. It hopes to design an email campaign that will ensure it receives at least $50,000. The campaign will reach 10,000 donors and receive donations with a mean of $10 and a standard deviation of $5.
Which measure should be used to determine the probability of the campaign receiving $50,000?
A) T-statistic
B) Median
C) Z-score
D) R-squared
3. 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) Prospective cohort study
B) Time series study
C) Observational study
D) Blind study
4. How is a cause-and-effect diagram used?
A) As a financial risk calculation tool for a new product release
B) As a software tool to automatically generate a business process diagram
C) To brainstorm possible root causes for an intermittency problem
D) To assign blame for manufacturing problems
5. Why are sample sizes important for ensuring statistical significance?
A) So that the possibility of researcher bias is eliminated
B) So that a hypothesis cannot be misinterpreted
C) So that accurate conclusions can be confidently applied to larger populations
D) So that no additional analysis is required
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: C |
By Armstrong
