Question: 4. Sequencing & Scheduling (8 +8+7+7 points): (a) Find a schedule to minimize the weighted mean flow times (WMFT) of the following jobs? (8 points).

4. Sequencing & Scheduling (8 +8+7+7 points): (a)

4. Sequencing & Scheduling (8 +8+7+7 points): (a) Find a schedule to minimize the weighted mean flow times (WMFT) of the following jobs? (8 points). Job, j Time, ty Weight, w; 1 4 1 2 14 2 3 3 3 4 12 2 5 10 5 (b) What is the resulting WMFT? (8 points). (c) If all these jobs are doubly weighted (i.e., w; =2 for all jobs) then what is the WMFT? (7 points) (d) Under what condition of the weights can you apply the shortest processing time (SPT) to minimize the mean flow time, and what are that sequence and the mean flow time under that condition? (7 points)

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