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A time study od a certain service task found a average cycle time of 15 minutes, with a standard deviation of 5 minutes. These...Asked by jeannie
A time study of a certain service task found an average time of 15 minutes, with a standard deviation of 5minutes.
These figures were based on a sample of 100 measurements. Is the sample large enough that we are 95% confident that standard time is within 5% of its true value?
These figures were based on a sample of 100 measurements. Is the sample large enough that we are 95% confident that standard time is within 5% of its true value?
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