Five jobs are planned to be scheduled. Each of the jobs must be processed on threemachines (A, B, and C) in the same order. The processing times are listed below. UseJohnson's Rule to determine the optimal sequence of jobs.JobB16101110142012310841O a) 3-1-2-4-5O b) Johnson's Rule is not an Optimal TechniqueO c) 1-2-3-4-5O d) 5-4-3-1-2O e) 5-4-3-2-1O) 5-4-2-1-3O e) 5-4-2-3-12345

Sequencing is an appropriate order of plan as per which the process of operations works. It defines…

Answered: machines (A, B, and C) in the same…

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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where the consulting company has five jobs in its backlog. Create a schedule usingthe EDD rule, calculating the average days past due and flow time. In this case, does EDD outperformthe FCFS rule?
Thanks. e. Assign tasks to workstations using the cycle time in “b” above. f. Calculate the efficiency and idle time percentage of the line.
This is when a job is increased vertically or horizontally.
Consider 8 jobs with processing times, due dates as shown below: Find the optimal sequence using the four sequencing rules; (FIFO, DD, SOT, LIFO). Based on minimizing the jobs average time as well as meeting the deadlines (Due Date) allocated to each job, Explain your final decision. Job(1) Processing time (days) Due Date (days) 1 5 15 2 8 10 3 6 13 4 3 25 5 10 20 619 14 40 7 8 7 3 45 50
As the Cottrell Bicycle Co. of St. Louis completes plans for its new assembly line, it identifies 25 different tasksin the production process. VP of Operations Jonathan Cottrell now faces the job of balancing the line. He lists precedencesand provides time estimates for each step based on work-sampling techniques. His goal is to produce 1,000 bicycles perstandard 40-hour workweek.Balance this operation using the shortest operation time rule and compute the efficiency of the line.
A production line is to be designed for a job with four tasks. The task times are 2.7 minutes, 0.4 minutes, 0.6 minutes, and 2.7 minutes. After line minutes, and the smallest possible assigned cycle time is minutes. (Round balancing, the largest possible assigned cycle time is answers to one decimal place.) OA. 6.4, 2.7 OB. 3.1, 2.3 OC. 1.6, 0.6 OD. 2.7, 0.4 OE. 6.0, 1.6
The following jobs are waiting to be processed at a small machine center; JOB 10 20 30 40 50 days (round your response to one decimal place). DUE DATE 260 254 260 265 275 days (round your response to one decimal place). DURATION (DAYS) 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 50, 20, 10, 30, 40 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). 18 22 14 4 32
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
Consider the following process at a pharmacy. Customers drop off their prescriptions either in the drive-through counter or in the front counter of the pharmacy. Customers can request that their prescription be filled immediately. In this case, they must wait between 15 minutes and one hour depending on the current workload. Most customers are not willing to wait that long, so they opt to nominate a pick-up time at a later point during the day. Generally, customers drop their prescriptions in the morning before going to work (or at lunchtime) and they come back to pick up the drugs after work, typically between 5pm and 6pm. When dropping their prescription, a technician asks the customer for the pick-up time and puts the prescription in a box labelled with the hour preceding the pick-up time. For example, if the customer asks to have the prescription be ready at 5pm, the technician will drop it in the box with the label 4pm (there is one box for each hour of the day). Every hour, one…
Processing time for eight projects, displayed in the sequence they arrived. Project P1 P2 P3 P4 P5 P6 P7 P8 Processing time (hours) 3 1 1 2 9 6 1 1.50 2. Given the projects displayed in table above, if FCFS is used to sequence the jobs, what is the average flow rate of the projects? Note: Round your answer to 2 decimal places. 3. Given the projects displayed in table above, if FCFS is used to sequence the jobs, what is the average flow time of the projects? Note: Round your answer to 1 decimal place. 4. Given the projects displayed in table above, if FCFS is used to sequence the jobs, what is the average inventory of the projects? Note: Use your rounded answers from Parts 2 and 3. Round your answer to 1 decimal place. 5. Given the projects displayed in table above, if SPT is used to sequence the jobs, what is the average flow rate of the projects? Note: Round your answer to 2 decimal places. 6. Given the projects displayed in table above, if SPT is used to sequence…
How do you schedule 100 regular manufacturing employees working four to six-hour shifts and three skilled employees on a typical plant process? Each machine and employee must be scheduled over the day and the standard time for planning is an hour?
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 D 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 ABCDE Due Date 315 313 312 325 314 Duration (days) 3 8 16 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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machines (A, B, and C) in the same order. The processing times are listed below. Use Johnson's Rule to determine the optimal sequence of jobs.