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Category > Management Posted 25 Oct 2017 My Price 3.00

study of a factory worker

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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Maurice Tutor
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Status NEW Posted 25 Oct 2017 02:10 PM My Price 3.00

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