Historically, the Average Time to Service a Customer Complaint Has $\bar{x}$

question 76

Multiple Choice

Historically, the average time to service a customer complaint has been 3 days and the standard deviation has been 0.50 day. Management would like to specify the control limits for an $\bar{x}$ chart with a sample size of 10- and 3- sigma limits. Suppose the average service time from the next 10 samples yielded the following result: 3.2, 2.1, 3.6, 2.8, 3.9, 3.5, 2.7, 4.1, 2.6, and 3.3 days. What conclusion can be drawn?

• A) Assuming the process variability is in control, the process average is also in statistical control.
• B) Assuming the process average is in control, the process average is out of statistical control.
• C) The sample size should be increased.
• D) No conclusion can be drawn because there is insufficient data.

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An entity that provides insurance policies to individuals or organizations, offering financial protection against losses from specified risks.

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Intentional deception or misrepresentation made by a person with the knowledge that the deception could result in some unauthorized benefit to oneself or some other person.

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