Problem 7 (5 marks) The Production Manager at Melmoth Machine Company is preparing a production schedule for one of the fabrication shop's machines, the Grizzly Metal Lathe. He has collected the following information on jobs currently waiting to be processed at this machine. (There are no other jobs, the machine is empty, and the shop is operational 7 days per week.). Job Job Due Date Machine Processing Time (Days) 4 1 Date Job Arrived at this Machine 6-23 6-24 8-15 A B D 9-10 7-01 5 2 8-01 8-17 6-19 a. The production manager has heard about three dispatching rules: the shortest operation next rule, the first-come-first-served rule, and the earliest due date rule. In what sequence would these jobs be processed at the Metal Lathe if each rule were applied? Rule Sequence Page 9 of 17 b. If it is now the morning of July 10, and the shortest operation next rule is used, when would each f the four jobs start and be completed on the Metal Lathe? (Express your schedule in terms of the calendar dates involved, assuming that there are seven working days each week.) Use the diagram below, and draw blocks where each job (A, B, C, and D) begins and ends. Label each block. (For example, your answer should look something like this (but not exactly like this): A B D 7-10 7-11 7-12 7-13 7-14 7-15 7-16 7-177-18 7-19 7-20 7-21 7-22 Your answer should go here: 7-107-117-127-137-147-15 7-16 7-177-187-19 7-20 7-21 7-22