Question: Using the following information, determine the sample size needed if the standard time estimate is to be within 5 percent of the true mean 95

Using the following information, determine the sample size needed if the standard time estimate is to be within 5 percent of the true mean 95 percent of thetime.

Standard Mean Work Element ( Deviation Observed Time minutes 0.60 0.20 1.10 0.85 0.40 0.50 minutes 2.40 1.50 3.85 2.55 1.60 2.50

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