. The commute time to work in the U.S. has a bell shaped
distribution with a population mean of 24.4 minutes and a
population standard deviation of 6.5 minutes. What proportion of
the population has a commute time:
a) between 11.4 minutes and 37.4 minutes? (1 pt)
b) less than 11.4 minutes? (1 pt)
c) greater than 37.4 minutes? (1 pt)
3. Using the parameters provided in the previous question, Q2,
determine the z-score that corresponds to a commute
time of 15 minutes. (2 pts)