A shipyard services ships and makes it seaworthy as per the regulations. Management schedules overtime during periods of high demand to reduce backlog. The following ships need to be scheduled for servicing:

The due dates reflect the need for the ship to be ready for its next operation at sea.
a. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average past due hours.
b. Comment on the performance of the two rules relative to these measures.

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Ship 1 2 3 4 5 Time Since Ship Arrived (days) 6 5 3 2 1 Estimated Service Time (days) 11 4 17 11 9 Due Date (days from now) 13 9 20 22 24