Question

In a study of the accuracy of fast food​ drive-through orders, Restaurant A had

236236

accurate orders and

6868

that were not accurate.a. Construct a

9090​%

confidence interval estimate of the percentage of orders that are not accurate.b. Compare the results from part​ (a) to this

9090​%

confidence interval for the percentage of orders that are not accurate at Restaurant​ B:

0.2090.209less than<pless than<0.2790.279.

What do you​ conclude?

a. Construct a

9090​%

confidence interval. Express the percentages in decimal form.

nothingless than<pless than<nothing

​(Round to three decimal places as​ needed.)

Answer 1

Solution:

a)

b)

The confidence interval is wider than the Restaurant B