Essay
A consultant is planning a survey of corporate executives 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. The consultant wants to estimate the mean weekly work time within five hours. The 95% level of confidence is to be used. How many executives should be surveyed?
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16
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Correct Answer:
Verified
Explanation: We use
. When...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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