Customers arrive, with interarrival times distributed as EXPO(5)—all times are in minutes—at a small service center that has two servers, each with a separate queue. The service times are EXPO(9.8) and EXPO(9.4) for Servers 1 and 2, respectively. Arriving customers join the shortest queue. Customer line switching occurs kel01315_ch09_379-422.indd 420 05/12/13 3:21 PM A Sampler of Further Modeling Issues and Techniques 421 whenever the difference between the queue lengths is 3 minutes or more. At that time, the last customer in the longer queue moves to the end of the shorter queue. No additional movement, or line switching, in that direction occurs for at least the next 30 seconds. Develop a model and animation of this system and run it for 10,000 minutes. Observe statistics on the number of line switches, resource utilization, and queue lengths.