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As a storeowner, you need to decide how many products to buy each quarter. In a sample of 100 days, the mean number of products

As a storeowner, you need to decide how many products to buy each quarter. In a sample of 100 days, the mean number of products you sell each day is 85 with a standard deviation of 38.

a) Construct a 99% confidence interval for the population mean.

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