Question: The average employee in the U.S.A. spends μ⁼23 minutes commuting to work each day. Assume that the distribution of the commute times is normal with a standard deviation of σ⁼8 minutes.

a. What proportion of U.S. employees spends less than 15 minutes a day commuting?

b. What i s the probability of randomly selecting an employee who spends more than 35 minutes commuting each day? .