Question: You may need to use the appropriate appendix table or technology to answer this question. Sheer industries are considering a new computer-assisted program to train

You may need to use the appropriate appendix table or technology to answer this question.

Sheer industries are considering a new computer-assisted program to train maintenance employees to do machine repairs. In order to fully evaluate the program, the director of manufacturing requested an estimate of the population mean time required for maintenance employees to complete the computer-assisted training. Use 9.74 days as a planning value for the population standard deviation. (Round your answers up to the nearest whole number.)

(a) Assuming 95% confidence, what sample size would be required to obtain a margin of error of 1.5 days?

(b) If the precision statement was made with 90% confidence, what sample size would be required to obtain a margin of error of 3 days?

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