A Company Is Concerned About the Number of Customers Who

Multiple Choice

A company is concerned about the number of customers who have to wait for service in its customer service department. Assume the rate at which customers are serviced is 12 per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the mean time between arrivals?

A) 12 minutes
B) 6 minutes
C) 2 minutes
D) 1 minute
E) None of these choices are correct.