In the hand simulation of the simple processing system, suppose the drill press is taken down for burn-in maintenance at time 2 minutes, and it takes 5 minutes to do this work and bring it back up; it then stays up for the rest of the 20-minute simulation length. If there is a part in service when the drill press goes down, it just sits there. Its processing is suspended until the drill press comes back up; when it is resumed, the part only needs just its remaining processing time (its processing does not have to start over from scratch). During the downtime, the arrival process of new parts continues without regard to downtime. Regard the drill press as being busy when it is down, and define the time in the system of a part to include the time it sits in the drill press but not being worked on if it is unlucky enough to be in service when the drill press is taken down. Using the sample input given in the worksheet, carry out this simulation by hand and note any differences in the output performance measures from the original model. Include a comparison and include some comments on the performance measures: - Total production - Average waiting time in queve - Maximum waiting time in queve - Average total time in the system - Maximum total time in the system - Time-average number of parts in queve - Maximum number of parts in queve - Drill-press utilization. Events This describes what just happened; Arri and Dep refer respectively to an arrival and departure. Wariables These are the values of the number Q(t) of parts in queue and the server-busy function B(t). ( 1 busy, 0 idle). Attributess Each arriving entity's arrival time is assigned when it arrives and is carried along with it throughout. If a part is in service at the drill press, its arrival time is at the right edge of the column and is not enclosed in parentheses. Seatistieal Aeemmonletork Event Gallendars These are the event records as described earlier. Note that, at each event time, the top record on the event calendar becomes the first three entries under "Just-Finished Event" at the left of the entire table in the next row, at the next event time