A study found that the mean amount of time cars spent indrive-throughs of a certainfast-food restaurant was 148.1 seconds. Assumingdrive-through times are normally distributed with a standard deviation of 26 seconds, complete parts(a) through(d) below

a. 0.0350

b. 0.0495

(c) What proportion of cars spend between 2 and 3 minutes in therestaurant's drive-through?

The proportion of cars that spend between 2 and 3 minutes in therestaurant's drive-through is