Albert Abbasi,VP of Operations at Ingleside International Bank,is Evaluating the Service

Multiple Choice

Albert Abbasi,VP of Operations at Ingleside International Bank,is evaluating the service level provided to walk-in customers. Accordingly,he plans a sample of waiting times for walk-in customers. If the population of waiting times has a mean of 15 minutes and a standard deviation of 4 minutes,the probability that Albert's sample of 64 will have a mean between 13.5 and 16.5 minutes is ________.

A) 0.9974
B) 0.4987
C) 0.9772
D) 0.4772
E) 0.5000