The average completion time (flow time) for the sequence developed using the FCFS rule = 11.75 days (round your response to two decimal places). The percentage utilization for the sequence developed using the FCFS rule = 42.55 % (enter your response as a percentage rounded to two decimal places). b) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): An Alabama lumberyard has four jobs on order, as shown in the following table. Today is day 205 on the yard's schedule. In what sequence would the jobs be ranked according to the decision rules on the left: Job Due Date A 212 B 209 C 208 D 210 Duration (days) 6 3 3 8 Sequence 1 Job B 2 3 4 A D The average tardiness (job lateness) for the sequence developed using the SPT rule = 5.00 days (round your response to two decimal places). The average completion time (flow time) for the sequence developed using the SPT rule = 10.25 days (round your response to two decimal places). The percentage utilization for the sequence developed using the SPT rule = 48.78% (enter your response as a percentage rounded to two decimal places). c) Using the LPT (longest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): Sequence 1 Job D 2 A 3 B 4 The average tardiness (job lateness) for the sequence developed using the LPT rule = to two decimal places). days (round your response All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on day 205. Compute all times based on initiating work on day 205.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter4: Linear Programming Models
Section: Chapter Questions
Problem 111P
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The average completion time (flow time) for the sequence developed using the FCFS rule = 11.75 days (round your
response to two decimal places).
The percentage utilization for the sequence developed using the FCFS rule = 42.55 % (enter your response as a
percentage rounded to two decimal places).
b) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the
order in which the jobs were received):
An Alabama lumberyard has four jobs on order, as shown in the following table. Today is day 205 on the yard's
schedule. In what sequence would the jobs be ranked according to the decision rules on the left:
Job
Due Date
A
212
B
209
C
208
D
210
Duration (days)
6
3
3
8
Sequence
1
Job
B
2
3
4
A
D
The average tardiness (job lateness) for the sequence developed using the SPT rule = 5.00 days (round your
response to two decimal places).
The average completion time (flow time) for the sequence developed using the SPT rule = 10.25 days (round your
response to two decimal places).
The percentage utilization for the sequence developed using the SPT rule = 48.78% (enter your response as a
percentage rounded to two decimal places).
c) Using the LPT (longest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the
order in which the jobs were received):
Sequence
1
Job
D
2
A
3
B
4
The average tardiness (job lateness) for the sequence developed using the LPT rule =
to two decimal places).
days (round your response
All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on day 205.
Compute all times based on initiating work on day 205.
Transcribed Image Text:The average completion time (flow time) for the sequence developed using the FCFS rule = 11.75 days (round your response to two decimal places). The percentage utilization for the sequence developed using the FCFS rule = 42.55 % (enter your response as a percentage rounded to two decimal places). b) Using the SPT (shortest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): An Alabama lumberyard has four jobs on order, as shown in the following table. Today is day 205 on the yard's schedule. In what sequence would the jobs be ranked according to the decision rules on the left: Job Due Date A 212 B 209 C 208 D 210 Duration (days) 6 3 3 8 Sequence 1 Job B 2 3 4 A D The average tardiness (job lateness) for the sequence developed using the SPT rule = 5.00 days (round your response to two decimal places). The average completion time (flow time) for the sequence developed using the SPT rule = 10.25 days (round your response to two decimal places). The percentage utilization for the sequence developed using the SPT rule = 48.78% (enter your response as a percentage rounded to two decimal places). c) Using the LPT (longest processing time) decision rule for sequencing the jobs, the order is (to resolve a tie, use the order in which the jobs were received): Sequence 1 Job D 2 A 3 B 4 The average tardiness (job lateness) for the sequence developed using the LPT rule = to two decimal places). days (round your response All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on day 205. Compute all times based on initiating work on day 205.
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