Question 3 (50%). In the hand simulation of the simple processing system, suppose that a constant setup time of 3 minutes was required once a part entered the drill press but before its service could actually begin. When a setup is going on, regard the drill press as being busy. Plot the total number of parts in system as a function of simulated time. Re-do the hand simulation and discuss the results. Some simulation records are given in the Excel file on Sheet Q3. AA 1 Just Finished State Queue Machine Accumulators Event Calendar 2 ID Time Event Q(t) B(t) ID Arrival ID Arrival P N 3 -- 0.00 Ini 0 0 -- 0 0 WQ* TS* 0.00 0.00 0.00 0.00 SQ Q* JB 0.00 0 0.00 4 ID Time Event 1 0.00 Arr 20.00 End Interarrival: Service Time: 1.73 1.35 0.71 0.62 5.90 4.76 6.39 7.52 14.28 0.70 15.52 7.46 7.36 5.07 5 6 7 8 5 4.41 Arr 4 1 2 1.73 1 0.00 0 1 0.00 0.00 0.00 0.00 4.63 4 4.41 1 5.90 Dep Interarrival: 9 3 3.08 10 4 3.79 6 18.69 Arr 20.00 End 1.73 1.35 0.62 Service Time: 5.90 4.76 6.39 7.52 0.71 14.29 0.70 15.52 7.46 7.36 5.07 11 5 4.41 12 www 13 20.00 End 3 1 5 4.41 4 3.79 3 4 25.01 13.26 28.8 13.97 42.52 4 20.00 4 24.57 Dep Interarrival: 14 6 18.69 8 34.91 Arr Service Time: 1.73 1.35 0171 0.62 5.90 4.76 6.39 7.52 14.29 0.70 15.52 7.46 7.36 5.07 15 7 19.39 16 17 18 Total Production. 19 Average waiting time in queue 20 Maximum waiting time in queue 21 Average total time in system 22 Maximum total time in system 23 Time-average number of parts in queue 24 Maximum number of parts in queue 25 Utilization of machine 26 27 28 29 ... parts ...minutes per part ... minutes minutes per part ... minutes ... parts parts AF