A local pizza place claims that they average a delivery time of 7.32 minutes. To test this claim, you order 11

pizzas over the next month at random times on random days of the week. You calculate that the average

delivery time is 8.82 minutes with a standard deviation of 1.744 minutes. You create a 95% confidence interval

of (7.648, 9.992). Of those listed below, what is the best conclusion you can make?

a. You are 95% confident that the average delivery time is greater than 7.32 minutes.

b. The average delivery time does not significantly differ from 7.32 minutes.

c. You are 95% confident that the average delivery time is less than 7.32 minutes.

d. The percentage of pizzas that arrive around 7.32 minutes is 95%.