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Category > Statistics Posted 11 Jun 2017 My Price 7.00

A time study of a factory worker has revealed an average observed time of 3.20 minutes

A time study of a factory worker has revealed an average observed time of 3.20 minutes, with a standard deviation of 1.28 minutes. These figures were based on a sample of 45 observations. Is this sample adequate in size for the firm to be 99% confident that the standard time is within {5% of the true value? If not, what should be the proper number of observations?

 

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Alpha Geek
(8)
Status NEW Posted 11 Jun 2017 12:06 PM My Price 7.00

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Attachments

file 1497183612-1920456_1_636326895551777253_sample-size-requirement.xlsx preview (202 words )
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