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Job 1 2 3 4 5 6 FCFS Rule Flow Time (hours) verage flow time (FCFS rule): hours

Job 1 2 3 4 5 6 FCFS Rule Flow Time (hours) verage flow time (FCFS rule): hours

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Consider a workstation that has one maintenance mechanic to repair failed machines. We can think of the mechanic as the processor (scarce resource) and the machines awaiting repair as the jobs. Let us assume that six machines are down, with estimated repair times given here, and that no new machines fail. 1 2 3 Job (fix machine #) Processing time 10 (hours) Job 1 2 3 4 5 6 2 Compute the flow time for each job using both the FCFS rule and the SPT rule, and compare the average flow times. Round your answers for average values to the nearest whole number. FCFS Rule 9 Flow Time (hours) Average flow time (FCFS rule): 4 5 6 1 8 6 hours
Transcribed Image Text:Consider a workstation that has one maintenance mechanic to repair failed machines. We can think of the mechanic as the processor (scarce resource) and the machines awaiting repair as the jobs. Let us assume that six machines are down, with estimated repair times given here, and that no new machines fail. 1 2 3 Job (fix machine #) Processing time 10 (hours) Job 1 2 3 4 5 6 2 Compute the flow time for each job using both the FCFS rule and the SPT rule, and compare the average flow times. Round your answers for average values to the nearest whole number. FCFS Rule 9 Flow Time (hours) Average flow time (FCFS rule): 4 5 6 1 8 6 hours
SPT rule Sequence Flow Time (hours) -Select- -Select- ✓ -Select- -Select- -Select- ✓ -Select- ✔ Average flow time (SPT rule): The -Select- ✓minimizes flow time and gets the most work done in the least amount of time. hours
Transcribed Image Text:SPT rule Sequence Flow Time (hours) -Select- -Select- ✓ -Select- -Select- -Select- ✓ -Select- ✔ Average flow time (SPT rule): The -Select- ✓minimizes flow time and gets the most work done in the least amount of time. hours
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