Normally Distributed Observations Such as a Person's Weight, Height or Shoe

Multiple Choice

Normally distributed observations such as a person's weight, height or shoe size occur quite frequently in nature. Business people who are aware of this use it to their advantage. A purchasing agent for a college bookstore buying 300 golf shirts used the normal curve to decide on the order quantities for the various sizes. If men's average shirt size is 15.5 with a standard deviation of.50, how many shirts should be ordered in sizes over 16.5?

A) 7
B) 8
C) 9
D) 10
E) 6