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A time study has revealed an average observed time of 5? minutes, with a standard deviation of 1.25 minutes. These figures are based on a sample of 75 cycles. Is this sample large enough for an analyst to be? 99.73% confident that the standard time is within? 5% of the true? value?

The required sample size is ____(enter your response as a whole? number).

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Category:- Operation Management
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