How many lunch receipts must company sample
A company wants to estimate the average sales lunch expense. They want to be within $5 of the true mean when using a confidence interval of 95%. The standard deviation is estimated at $25. How many lunch receipts must they sample?
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They want to be within $5 of the true mean when using a confidence interval of 95%. The standard deviation is estimated at $25. How many lunch receipts must they sample?
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