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...

Extracted text: 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. Interpret for the management the margin of error. If we need to be 99% confidence, does the margin of error become larger or smaller? Find the margin of error for a 99% confidence interval. b) c) d)