Question: A time study analyst wants to estimate the time required to perform a certain job. A preliminary study yielded a mean of 18 minutes and

A time study analyst wants to estimate the time

A time study analyst wants to estimate the time required to perform a certain job. A preliminary study yielded a mean of 18 minutes and a standard deviation of 4 minutes. The desired confidence s 95% How many observations will she need to make if the maximum allowable error is 8 percent? Multiple Choice 6 observations 30 observations 48 observations 98 observations 9604 observations

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