The following jobs are waiting to be processed at a small machine center:10, 40, 20, 50, 3020, 30, 10, 40, 5030, 40, 20, 50, 10All dates are specified as manufacturing planning calendar days. Assume that all jobs arrived on day 210 (yesterday) in the order shown but are not scheduled to begin until day 211 (today).a) Sequence the jobs according to LPT.According to the LPT rule, the sequence of jobs should beb) What is the average completion (flow) time?The average completion (flow) time is days (round yourc) What is the average job lateness?The average job lateness is days (round your response10, 50, 30, 40, 2030, 50, 20, 40, 1020, 10, 30, 40, 50JOB1020304050ce).DUE DATE270264270280290DURATION (DAYS)416301226

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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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K The following jobs are waiting to be processed at a small machine center: JOB 10 20 30 40 50 DUE DATE DURATION (DAYS) 260 256 260 265 275 28 12 8 18 22 All 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, 30 b) 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 is 4 days (round your response to one decimal place).
The following 5 overhaul jobs are waiting to be processed at Avianic's Engine Repair Inc. These jobs were logged as they arrived. All dates are specified as planning calendar days. Calculate the Critical Ratios (CR): (Enter all responses rounded to two decimal places.) Job CR Job Due Date Duration (days) 103 103 214 10 205 205 223 309 309 217 11 412 219 412 517 216 15 517 Assume that all jobs arrived on day 180; today's date is 200.
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): Sequence 1 Job 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. 2 3 4 5 ... The total flow time for the sequence developed using the SPT rule = days (round your response to two decimal places). The percentage utilization for the sequence developed using the SPT rule = ☐ % (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 SPT rule = jobs (round your response to two decimal…
Five jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the table below. Each job requires work center Alpha before work center Beta. According to Johnson's rule, which job should be scheduled first in the sequence? O A. V OB. U O C. R OD. S O E. T Job R S T Alpha 20 23 50 26 55 Beta 34 35 20 26 75
The following jobs are waiting to be processed at Jeremy LaMontagne's machine center. Today is day 250. Using the critical ratio scheduling rule, in what sequence would the jobs be processed?
The following jobs are waiting to be processed at a small machine center: DUE DATE 250 242 250 260 265 JOB 10 20 30 40 50 DURATION (DAYS) 20 10 16 34 6 All 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 rulle, the sequence of jobs should be b) What is the average completion (flow) time? The average completion (flow) time is c) What is the average job lateness? The average job lateness is d) What is the average number of jobs in the system? The average number of jobs in the system is jobs (round your response to one decimal place). days (round your response to one decimal place). days (round your response to ane decimal place).
The following jobs are waiting to be processed at a small machine center. JOB 10 20 30 40 50 DUE DATE 260 256 260 265 275 DURATION (DAYS) According to the LPT rule, the sequence of jobs should be 10, 50, 40, 20, 30 b) 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 is 11.0 days (round your response to one decimal place). d) What is the average number of jobs in the system? The average number of jobs in the system is jobs (round your response to one decimal place). 28 12 8 18 22 D Points: 2 of 4 All 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
The following jobs are waiting to be processed atJeremy LaMontagne’s machine center. Today is day 250. Using the critical ratio scheduling rule, in what sequencewould the jobs be processed?
Sequencing jobs through two work centers. Use Johnson’s rule to obtain the optimum sequence for processing the jobs shown through work centers A and B.JOB TIMES (hours)Job Work Center A Work Center Ba 2.50 4.20b 3.80 1.50c 2.20 3.00d 5.80 4.00e 4.50 2.00
Courtney is a programmer receiving requests each week to analyze a large data base. Five jobs were on her desk Monday morning, and she must decide in what order to write the code. Assume that all jobs arrived today (day 1 and hour 1), in the order shown below. Courtney has assigned the number of hours required to do the coding as noted. Note that Courtney works an 8-hour day and today is a work day. JOB DUE DATE (HOURS HENCE) 18 36 10 22 14 E a) Sequence the jobs according to EDD. According to the EDD rule, the sequence of jobs should be b) What is the average completion (flow) time? The average completion (flow) time is c) What is the average job lateness? The average job lateness is d) What is the average number of jobs in the system? The average number of jobs in the system is place). DURATION (HOURS REQUIRED) 3 19 4 9 5 days (round your response to one decimal place) days (round your response to one decimal place). jobs (round your response to one decimal
The framing department has five jobs waiting to be processed. It is now time zero and all jobs are ready to begin. Each has only one operation remaining. All jobs arrived at the same time, and FCFS begins with job a, then b, etc. Processing Time (days) Due Date (days) Jobs a b C d e A B On day 9 On day 13 If the Earliest Due Date (EDD) rule is used, when will job a be finished? On day 17 4 On day 19 6 2 7 8 8 7 9 6 14
a) Using the FCFS (first come, first served) decision rule for sequencing the jobs, the order is (assume that jobs came in the order in which they are listed in the table): Sequence 1 2 3 4 5 Job A B C E The average tardiness (job lateness) for the sequence developed using the FCFS rule = days (round your response to two decimal places) The following jobs are waiting to be processed at the same machine center. Jobs are logged as they arrive: Job A B C E Due Date 315 313 312 325 314 Duration (days) 3 8 16 40 5 All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on day 275. Assume each job starts at the beginning of the day and finishes at the end of the day (a job that begins on day 275 and takes 8 days will finish on day 282, and the next job begins in the morning of day 283). Compute all times based on initiating work on day 275.

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