1 A state driver's license exam center would like to examine its operation for poten- tial improvement. Arriving customers enter the building and take a number to determine their place in

line for the written exam which is self administered by one of five elec- tronic testers. The testing times are distributed as EXPO(8); all times are in minutes. Thirteen percent of the customers fail the test (it's a hard test with lots of questions). These customers are given a booklet on the state driving rules for further study and leave the system. The customers who pass the test select one of two photo booths where their picture is taken and the new license is issued. The photo booth times are distributed TRIA(2.5, 3.6, 4.3). The photo booths have separate lines, and the customers tend to en- ter the line with the fewest waiting customers. If there is a tie, they enter the nearest booth, Booth 1. These customers then leave the system proudly clutching their new li- censes. The center is open for arriving customers eight hours a day, although the services are continued for an additional hour to accommodate the remaining customers. The cus- tomer arrival pattern varies over the day and is summarized below: Hour Hour 1 2 3 1 2 3 4 Arrivals per Hour 22 35 40 31 Hour 5 6 7 Run your simulation for ten days keeping statistics on the average number of test fail- ures per day, electronic-tester and photo-booth utilization (utilization for the testing re- source overall, but separate utilizations for each photo booth), average number in queue, and average customer system time for those customers passing the written exam. Arrival Per hour 22 35 40 Hour 5 6 7 Arrivals per Hour 35 43 29 8 22 Arrival per hour 35 43 29 22