Number: 12

In a study of the accuracy of fast fooddrive-through orders, Restaurant A had 321 accurate orders and 52 that were not accurate.

a. Construct a 95% confidence interval estimate of the percentage of orders that are not accurate.

b. Compare the results from part(a) to this 95% confidence interval for the percentage of orders that are not accurate at RestaurantB: 0.125

a. Construct a 95% confidence interval. Express the percentages in decimal form.

-----

(Round to three decimal places asneeded.)