A machining center has the following small jobs from five of its customers. The jobs are listed in the order in which they were received. Each job requires a certain amount of setup time in addition to its processing time. Job names refer to the names of the customers. Note that the job completion time is the sum of the total processing time for each job and its setup time:

1. Use the following sequencing rules to determine the order in which the jobs should be processed: FCFS, EDD, SPT, and CR.

2. For each of these rules, determine the average flow time, the average job tardiness, and the average number of jobs in this machining center.

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Processing Time (in hours per unit) 0.14 0.20 Number of Units Setup Time Due Date (in hours) Job 5 11 50 Patel 1.0 17 1.6 Smith Lopez Garcia 15 0.75 13 0.15 45 23 0.30 0 10 0.5 17 Chen 10