An office of a state license bureau has two types of arrivals. Individuals interested in purchasing
new plates are characterized to have interarrival times distributed as EXPO(6.8) and service
times as TRIA(8.8, 13.7, 15.2); all times are in minutes. Individuals who want to renew or apply
for a new driver’s license have interarrival times distributed as EXPO(8.7) and service times as
TRIA(16.7, 20.5, 29.2). The office has two lines, one for each customer type. The office has five
clerks: two devoted to plates (Mary and Kathy), two devoted to licenses (Sue and Jean), and the
team leader (Neil) who can serve both customer types. Neil will serve the customer who has
been waiting the longest. Assume that all clerks are available all the time for the eight-hour day
(8 AM to 5 pm).
The output measure of interest is customers’ total time in system for both customer types