15. (**) Consider the following job information. Each job must proceed sequentially through the different work areas, and each area can work on only one job at a time. Sequence the jobs according to the (1) first-come, first-served rule, (2) earliest due date, and (3) critical ratio. Calculate the average lateness under each rule. Which rule performs best? Are any of the results completely satisfactory? What are the implications? Estimated Days Job Painting Assembly Packing Total Task Time Days Until Due A 1.5 2 0.5 B 0 15 3 1 8 16 3 2 0.5 5.5 8 < 397 /48 work areas, and each area can work on only one job at a time. Sequence the jobs according to the (1) first-come, first-served rule, (2) earliest due date, and (3) critical ratio. Calculate the average lateness under each rule. Which rule performs best? Are any of the results completely satisfactory? What are the implications? Estimated Days Job Painting Assembly Packing Total Task Time Days Until Due A 1.5 2 0.5 4 15 B 4 3 1 8 16 0 D 3 2 0.5 5.5 8 9 1 11 20