Job times which includel processing and set up times are shown below:Job Job Time (bs)Due Date (bs)A15B24CDB12614372086Determine the sequence using Critical Ratio Method

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Answered: Job times which include processing and…

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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At the campus copy shop, six jobs have arrived in the order shown (A, B, C, D, E, and F) at the beginning of the day 1 (today, which is a work day). All of the jobs are due at various times today. Your job is to evaluate four common sequencing rules. JOB DUE (IN HOURS) DURATION (HOURS REQUIRED) A 8 (this job is due in 8 hours) 1.65 B 5.5 (this job is due in 5.5 hours) 1.20 C 4.5 (this job is due after lunch in 4.5 hours) 0.85 D 6 (this job is due in 6…
At the campus copy shop, six jobs have a rrived in the order shown (A, B, C, D, E, and F) at the beginning of the day (today, which is a workday). All of the jobs are due at varioustimes today. Your task is to evaluate four common sequencing rules. a) Sequence the jobs according to the following decision rules:FCFS, EDD, SPT, and LPT.b) For the FCFS sequence, compute the average completion (flow) time, average lateness, and average number of jobs in the system.c) For the EDD sequence, compute the average completion (flow) time, average lateness, and average number of jobs in the system.d) For the SPT sequence, compute the average completion (flow) time, average lateness, and average number of jobs in the system. e) For the LPT sequence, compute the average completion (flow)time, average lateness, and average number of jobs…
Given the projects displayed in Table 18.21, if SPT is used to sequence the jobs, what isthe average inventory of the projects (in projects)?
The following table contains information regarding jobs that are to be scheduled through one machine: Job Processing Time (Days) Due date A 4 20 B 12 30 C 2 15 D 11 16 E 10 18 F 3 5 G 6 9 Qus 1: Find the FCFS Schedule? Qus 2: Find the SOT Schedule? Qus 3:Find the DDate Schedule? Qus 4: What are the mean flow time and average lateness for each of the schedule above? Qus 5: Which priority rule is appropriate for job scheduling? Justify your answer.
Ron Satter field's excavation company uses bothGantt scheduling charts and Gantt load charts.a) Today, which is the end of day 7, Ron is reviewing the Ganttchart depicting these schedules:• Job # 151 was scheduled to begin on day 3 and to ta ke6 days. As of now, it is I day ahead of schedule.• Job# 177 was scheduled to begin on day J and take 4 days.It is currently on time.• Job #1 79 was scheduled to start on day 7 and take 2 days. Itactually got started on day 6 and is progressing according toplan.• Job #211 was scheduled to begin on day 5, but missingequipment delayed it until day 6. It is progressing asexpected and should take 3 days.• Job #215 was scheduled to begin on day 4 and take 5 days.It got sta rted on time but has since fallen behind 2 days.Draw the Gantt scheduling chart for the activities described.b) Ron now wants to use a Ga ntt load chart to see how muchwork is scheduled in each of his three work teams: Able,Baker, and Charlie. Five jobs constitute the current…
The Mowry Machine Shop still has five jobs to be processedas of 8 a.m. today (day 23) at its bottleneck operation. The daywhen the order arrived, processing time, and promised duedates are given in the following table. The jobs are listed inthe order of arrival.a. Develop separate schedules by using the FCFS and EDDrules. Compare the schedules on the basis of averageflow time and average days past due.b. Which rule gives the best schedule, in your judgment?Why?
First Printing and Copy Center has 4 jobs to be scheduled. Production scheduling personnel are reviewing the Gantt chart at the end of day 4. Job D was scheduled to begin early on day 2 and take 7.5 days. As of now (the review point after day 4), it is 2 days ahead of schedule. Job E should begin on day 1 and take 4 days. It was on time. Job F was to begin on day 2, but maintenance forced a delay of 0.5 day. The job should now take 5 full days. It is now on schedule. Job G is a day behind schedule. It started at the beginning of day 2 and should require 7 days to complete. Add the actual progress to the Gantt schedule shown on the right (on which the planned timings have been already plotted as blue lines). Using the line drawing tool, plot the actual progress showing the actual start and the expected finish on top of (overlapping) the maroon dashed line provided just above the job number for each of the tasks.
Allocate the tasks to workstations taking into consideration the precedence requirements and using the LOT rule to break ties between feasible tasks.
Evan Schwartz has six jobs waiting to be processedthrough his machine. Processing time (in days) and duedate information for each job are as follows:Sequence the jobs by FCFS, SPT, SLACK, and DDATE.Calculate the mean flow time and mean tardiness of the sixjobs under each sequencing rule. Which rule would yourecommend?
Job 3 has recently been enlarged by adding task #4. According to the graph, job #3 has been
This is when work is scheduled in reverse from a future due date, to tell the time original work must be started.
The day when the order arrived, processing time, and promised due dates are given in the following table. The jobs are listed in the order of arrival. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average past due days. Make a comment.

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Job times which include processing and set up times are shown below: Job Job Time (bcs) Due Date (bs) A 15 24 20 8 6 Determine the sequence using Critical Ratio Method Im lu B C D B 12 6 14 3 7