Short Answer
A survey of corporate executives is being planned to determine their mean amount of weekly work time. A pilot survey indicated that the mean work time per week is 50 hours, with a standard deviation of 10 hours. It is desired to estimate the mean weekly work time within 5 hours. The 95 percent level of confidence is to be used. How many executives should be surveyed?
Correct Answer:
Verified
Correct Answer:
Verified
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