A sample ofnbsp400nbsporders fornbsptake-out food at a, Applied Statistics

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A sample ofnbsp400nbsporders fornbsptake-out food at a

A sample of 400 orders for take-out food at a local pizzeria found that the average cost of an order was $25 with s=$18.

(a) Find the margin of error, if we use a 95% confidence interval, for the average cost of an order.

(b) Interpret for management the margin of error.

(d) Find the 99% confidence interval.

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Applied Statistics: A sample ofnbsp400nbsporders fornbsptake-out food at a

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Applied Statistics: A sample ofnbsp400nbsporders fornbsptake-out food at a

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