A survey wherein 90 employees were randomly drawn shows that the average number of sick days taken
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A survey wherein 90 employees were randomly drawn shows that the average number of sick days taken by employees each year is 5.4 days. The number of sick days follows a normal distribution with a standard deviation of 1.5. Obtain a 90 % confidence interval for the average number of sick days.
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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