Hollywood Video is a small video stored located in Minneapolis. It is open 24 hours a day and experiences customers arriving throughout the day. The video store manager was interested in determining the traffic in his store. This made him conduct a study regarding the arrival process of his customers. He found that the customers arrive uniformly at the rate of 10 customers per hour. The Video Store has a single clerical staff to process the customer request (checkout a video cassette). The clerical staffs take an average of 5 minutes to checkout a customer.
a. If we assume that every incoming customer rents at least one video, what is the average number of customers in the video store?
b. What is the same assumption; determine the utilization of the clerical staff?