A survey indicates that for each trip to a supermarket, a shopper spends an average of 45 minutes with a standard deviation of 12 minutes in the store. The lengths of the time spent in the store are...

A survey indicates that for each trip to a supermarket, a shopper spends an average of
45 minutes
with a
standard deviation of 12 minutes
in the store. The lengths of the time spent in the store are
normally distributed.

a. What is the probability that a randomly selected shopper will have a shopping time of
more than 50 minutes? Round to 3 decimal places.

b.What is the value for the time for the
bottom 5%
of shoppers? Round to 1 decimal place. Include units.