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A sample of 300 orders for take-out food at a local pizzeria found that the average cost of an order was $23 with s=$15. a)

A sample of 300 orders for take-out food at a local pizzeria found that the average cost of an order was $23 with s=$15. a) Find the margin of error for this result if you want a 95% confidence interval for the average cost of an order

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