Calculate sample size and precision

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Reference no: EM1364259

Calculating Sample Size and Precision

Work Element
Standard Deviation (minutes)
Mean Observed Time (minutes)

1 0.60 2.40
2 0.20 1.50
3 1.10 3.85
4 0.85 2.55
5 0.40 1.60
6 0.50 2.50

Determine the sample size needed if the standard time estimate is to be within 5 percent of the true mean 99 percent of the time.

Reference no: EM1364259

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