According to the "1994 World Almanac" the average wind speed in Honolulu, Hawaii equals 11.4 miles per hour. Assuming that the speed of the winds is normally distributed, its standard deviation is equal to 3.5 miles per hour.

A.) Find the probability that the speed of the winds in a reading exceeds 13.5 miles per hour.

B.) Find the probability that the mean of a random sample of 9 readings exceeds 13.5 miles per hour.