Consider this situation: A manager is contemplating making changes to a single-server system that is expected to double the service rate, and still have just one server.

a. Would you (intuitively) think that doubling the service rate of a single-server system would cut the average waiting time in line in half?

b. For the sake of analysis, suppose the current system has an arrival rate of 8 customers per hour and a service rate of 10 customers per hour. If the service rate is doubled, what impact will that have on the average number waiting in line?

c. What are some managerial implications of your analysis?