KThe following jobs are waiting to be processed at a small machine center:JOB1020304050DUE DATE DURATION (DAYS)260256260265275281281822All dates are specified as manufacturing planning calendar days. Assume that all jobs arrived on day 200 (yesterday)in the order shown but are not scheduled to begin until day 201 (today).a) Sequence the jobs according to LPT.According to the LPT rule, the sequence of jobs should be 10, 50, 40, 20, 30b) What is the average completion (flow) time?The average completion (flow) time is 62.8 days (round your response to one decimal place).c) What is the average job lateness?The average job lateness is4days (round your response to one decimal place).

Scheduling is the process of arranging production activities in order to complete the manufacturing…

Answered: a) Sequence the jobs according to LPT.…

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...

See similar textbooks

Similar questions

If the jobs displayed in Table 18.23 are processed using the earliest-due-date rule, whatwould be the lateness of job B?
Five jobs must be scheduled for batch processing on a mainframe computer system. The processing times and the promised times for each of the jobs are listedhere.Job 1 2 3 4 5Processing time 40 min 2.5 hr 20 min 4 hr 1.5 hrPromised time 11:00 A.M. 2:00 P.M. 2:00 P.M. 1:00 P.M. 4:00 P.M.Assume that the current time is 10:00 A.M.a. If the jobs are scheduled according to SPT, find the tardiness of each job and themean tardiness of all jobs.b. Repeat the calculation in part (a) for EDD scheduling
Three jobs are to be scheduled on two machines A & B . Assume that the jobs are processed in the Sequence A-B. The processing times are : The Question is : Draw a Gantt Chart that shows the Schedule Corresponding to the sequences 1-2-3 of the jobs Job A B 1 5 4 2 7 7 3 3 5
If the jobs displayed in Table 18.23 are processed using the earliest-due-date rule, whatis the maximum tardiness?
Five jobs must be scheduled for batch processing on a mainframe computer system. The processing times and the promised times for each of the jobs are listed here. (given) Assume that the current time is 10:00 A.M.a. If the jobs are scheduled according to SPT, find the tardiness of each job and the mean tardiness of all jobs.b. Repeat the calculation in part (a) for EDD scheduling.
24 The job that arrived first at a work center or machine will be processed first and completed. Which of the following priority rules does this statement represent? a first come, first served b shortest processing time c critical ratio d earliest due date
Three jobs are to be scheduled on two machines A and B. Assume that the jobs are processed in the sequence A-B (A has to finish the job before B can continue the job). The processing times are: Job A B 1 5 4 2 7 7 3 3 5 Draw a Gantt chart that shows the schedule corresponding to the sequence 1-2-3 of the jobs.
The following 5 overhaul jobs are waiting to be pro-cessed at Avianic’s Engine Repair Inc. These jobs were logged as they arrived. All dates are specified as planning calendar days.Assume that all jobs arrived on day 180; today’s date is 200.JOB DUE DATE REMAINING TIME (DAYS)103 214 10205 223 7309 217 11412 219 5517 217 15Using the critical ratio scheduling rule, in what sequence wouldthe jobs be processed?
An insurance claims work area has five claims waiting for processing as follows: Job Processing Time Due Date (Di ) 1 18 31 2 14 25 3 12 23 4 19 24 5 10 37 Use the Excel Sequencing template to find the average flowtime, average and maximum tardiness, and average lateness for the following sequences: SPT sequence, EDD sequence, and the sequence 4-3-2-1-5. Round your answers for the average values to two decimal places. The SPT sequence is - - - - . Average Flow Time Average Tardiness Maximum Tardiness Average Lateness The EDD sequence is - - - - . Average Flow Time Average Tardiness Maximum Tardiness Average Lateness 4-3-2-1-5 sequence: Average Flow Time Average Tardiness Maximum Tardiness Average Lateness What sequencing rule do you recommend? The ___________ is recommended as it minimizes average flow time and number of jobs in system.
The following jobs are waiting to be processed at the same machine center. Jobs are logged as they arrive: In what sequence would the jobs be ranked according to the following decision rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? Alldates are specified as manufacturing planning ca.lendar days. Assumethat all jobs arrive on day 275. Which decision is best and why?
Seven jobs are to be processed through a single machine. The processing times anddue dates are given here.Job 1 2 3 4 5 6 7Processing time 3 6 8 4 2 1 7Due date 4 8 12 15 11 25 21Determine the sequence of the jobs in order to minimizea. Mean flow time.b. Number of tardy jobs.c. Maximum lateness.d. What is the makespan for any sequence?
The constraints governing the jobs are as fo1lows: A and B are start jobs; A controls C, D and E; B controls F and J; G depends upon C; H depends on D; E and F control I and L; K follows J; L is also controlled by K; G, H, I and L are the last jobs. Draw the network,

SEE MORE QUESTIONS

Recommended textbooks for you

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Operations Management

ISBN:

9781259667473

Author:

William J Stevenson

Publisher:

McGraw-Hill Education

Operations and Supply Chain Management (Mcgraw-hi…

Operations Management

ISBN:

9781259666100

Author:

F. Robert Jacobs, Richard B Chase

Publisher:

McGraw-Hill Education

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Operations Management

ISBN:

9781259667473

Author:

William J Stevenson

Publisher:

McGraw-Hill Education

Operations and Supply Chain Management (Mcgraw-hi…

Operations Management

ISBN:

9781259666100

Author:

F. Robert Jacobs, Richard B Chase

Publisher:

McGraw-Hill Education

Business in Action

Operations Management

ISBN:

9780135198100

Author:

BOVEE

Publisher:

PEARSON CO

Purchasing and Supply Chain Management

Operations Management

ISBN:

9781285869681

Author:

Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson

Publisher:

Cengage Learning

Production and Operations Analysis, Seventh Editi…

Operations Management

ISBN:

9781478623069

Author:

Steven Nahmias, Tava Lennon Olsen

Publisher:

Waveland Press, Inc.

SEE MORE TEXTBOOKS