1. Patrons arrive randomly at a three-clerk post office. TIle interarrival time is exponential with mean 5 minutes. The time a clerk spends with a patron is exponential with a mean of 10 minutes. All arriving patrons form one queue and wait for the first available free clerk.

Run a simulation model of the system for 480 minutes to determine the following:

(a) The average number of patrons waiting in the queue.

(b) The average utilization of the clerks.

(c) Compare the simulation results with those of the MIMic queuing model (Chapter 15)

and with the spreadsheet MultiServerSimulator.xls.