**ANSWER: The average tardiness (job lateness) for the sequence developed using

Question

**ANSWER: The average tardiness (job lateness) for the sequence developed using the FCFS rule = _______days (round your response to two decimal places).

Using the FCFS (first come, first served) decision rule for sequencing the jobs, the order is The following jobs are waiting to be processed at Rick Solano's machine center. Solano's machine center has a relatively long backlog and sets a fresh schedule every 2 weeks, which does not disturb earlier schedules. Below are the jobs to be scheduled today, which is day 241 (day 241 is a work day). Job names refer to names of clients and contract numbers. Compute all times based on initiating work on day 241 Job SY-11 RG-05 BR-02 DE-06 CX-01 Sequence Date Job Received 230 235 231 228 225 Job Due Date Duration (days) BR 02 CX-01 DE-06 RG 05 320 360 310 300 270 35 40 30 4 The total flow time for the sequence developed using the FCFS rule 390 days (round your response to two decimal places) The percentage utilization for the sequence developed using the FCFS rule - 37.18 % (enter your response as a percentage rounded to two decimal places) The average number of jobs in the system for the sequence developed using the FCFS rule 2.69 jobs (round your response to two decimal places) The average tardiness (job lateness) for the sequence developed using the FCFS rule-Days (round your response to two decimal places) 25

Explanation / Answer

Total job tardiness=20+10/5=30/5=6

Job Duration Flow Time Job Completed Due date Days tardy SY-11 25 25 250 270 0 RG-05 15 40 265 300 0 BR-02 35 75 300 320 0 DE-06 30 105 330 310 20 CX-01 40 145 370 360 10

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