You Are Developing an X-Bar Chart Based on Sample Means

question 39

Multiple Choice

You are developing an X-bar chart based on sample means. You know the standard deviation of the sample means is 4, the desired confidence level is 99.7 percent, and the average of the sample means is 24. Which of the following is your UCL?

• A) 36
• B) 24
• C) 12
• D) 4
• E) None of these choices are correct.

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Definitions:

Fire Extinguishers

Portable devices used to put out fires by discharging a jet of water, foam, gas, or other materials.

Private Cost

Private cost is the cost incurred by an individual or company in producing goods or services, excluding externalities.

External Benefit

A positive effect of a transaction or activity on a third party who did not choose to incur that benefit.

Externalities

Financial implications or effects that influence bystander third parties and may be either beneficial or harmful.