15.(i)Estimated times for the jobs of a project are given below:A B C D E F G HI128JobTime(week)JK L94 1713 58107The constraints governing the jobs are as follows:A and B are the start jobs; A controls C,D and E; B controls F and J; Gdepends upon C; H depends on ; E and F control I and L; K follows J; Lis also controlled by K; G, H, I and L are the last jobs. Draw thenetwork, determine project duration and the critical path.

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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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15
Mega Corp. is designing a product layout for a new electronic product. They plan to use this production line 8 hours a day in order to meet forecasted demand of 700 units per day. For output to meet the forecasted demand, the cycle time for this production line should be? Round-up to the nearest integer Select one: a. 64 seconds b. 42 seconds c. 32 seconds d. 38 seconds
10
A manufacturer is designing a product layout for a new product production. It plans to use a production line for 8 hours per day in order to meet forecasted demand of 80 units per day. The product requires 7 tasks in total. These tasks are namely, A, B, C, D, E, F, and G respectively. Task A does not have any predecessor to start. To start Task B, it requires Task A to be completed. Starting tasks C needs, the task B to be completed. Also, starting task D needed task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks D and E. Finally, starting task G needed, task F to be completed. The processing times for tasks, A, B, C, D, E, F, and G are 2.8, 2.1, 0.9, 1.0, 1.2, 1.8, are 4.7 minutes respectively. What should be the (calculated) cycle time in minutes? Select one: Oa. 4.5 Ob. 0.9 Oc. None is the correct answer O d. 6.0 Oe. 4.4 Next pa nd Windows
Now you are being hired as a scheduler in the manufacturing unit of surgical instruments. Your job is to schedule four jobs on the two machines. The job processing time in minutes for the four jobs is given below: A с D Machine 1 Machine 2 3.43 0.11 B 1.58 0.46 3.62 2.29 4.05 4.52 The optimal schedule using Johnson method and makespan for the jobs is: (A)BCBA, 12.79 minutes (B) ABCD, 5.41 minutes (C) DCBA, 12.79 minutes (D) CDBA, 5.41 minutes
A manufacturer is designing a product layout for a new product production. It plans to use a production line for 8 hours per day in order to meet forecasted demand of 110 units per day. The product requires 7 tasks in total. These tasks are namely, A, B, C, D, E, F, and Grespectively. Task A does not have any predecessor to start. To start Task B, it requires Task A to be completed. Starting tasks C needs, the task B to be completed. Also, starting task D needed task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks D and E. Finally, starting task G needed, task F to be completed. The processing times for tasks, A, B, C, D, E, F, and G are 2.8, 2.1, 0.9, 1.0, 1.2, 1.8, and 4.7 minutes respectively. How many minimum numbers of workstations are needed? O a. 1 Ob. 2 c. 6. O d. None is the correct answer O e. 4 82°F Mostly cle acer
In an evaluation of labor assignment rules when workers are not perfectly interchangeable, Paul. M. Bobrowski and Paul Sungchil Park created a dynamic job shop with 9 work centers and 9 workers, both numbered 1–9. The efficiency of each worker is specified in the following labor efficiency matrix, which represents the degree of worker cross-training.† Work Centers 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 W o r k e r s (a) For what work center(s) is worker 2 least efficient? (Enter your answers as a comma-separated list.) (b) For what…
1. The standard time for a bank teller to process a loan form is estimated in seconds by 4 values: 120,140 ,70, and 135 a. If equal weight is placed on each estimate, what is the expected time to plan for? b. If the smallest time is disregarded, estimate the expected time. Does the smallest estimate seem to significantly change the expected value?
Freed works for a traditional company that expects him to start at 8.30 a.m. and leave at 5.30 p.m. or later every day. Most of his work is done on a project basis and, as a manager, he is responsible for the quality of work that is produced and for meeting deadlines, as the nature of his work involves meeting deadlines, achieving certain objectives, and hitting targets. On most days of the week, there is often extra work to be done on a project, and Freed stays late in the office or brings his work home. Occasionally, his director and colleagues find him missing important information in a meeting because he was thinking about something else.People sometimes think about something other than what they’re doing. Their minds wander, whether they are trying to read important emails, speaking to clients, updating the sales figures, or talking to colleagues, creating barriers in communication not only for themselves but also their receivers. Justify this statement in keeping with the…
Find the value of X in the following Flow Shop data consisting of 5 jobs which are to be processed on two machines M1 & M2 in that order. Jobs M1 M2 A 13 21 B 8 16 C 30 25 D 11 27 E 15 25 For the sequence using Johnson’s Rule, the Make span = X
A new surgical facility called Cut & Sew has opened in the United States. The branches of the facility are spread throughout the country. These are job shops that handle a variety of outpatient surgical procedures. The process of the facility is set up in a way that one doctor will cut and another will sew. The data regarding the patients and the estimated time for cutting and sewing for each patient are given in the following table: Patient A Cut Time (hours) 2.3 2.5 Sew Time (hours) 2.8 3.0 1.5 1.0 2.8 IB 2.0 0.6 3.8 If we apply the following sequence B-C-D-A-E, the makespan is place). Type your precise answer (one decimal Your Answer: Answer
A manufacturer is designing a product layout for a new product production. It plans to use a production line for 8 hours per day in order to meet forecasted demand of 90 units per day. The product requires 7 tasks in total. These tasks are namely, A, B, C D E F and G respectively. Task A does not have any predecessor to start. To start Task B, it requires Task A to be completed, Starting tasks needs the task to be completed. Also starting task D, needed task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks D and E. Finally, starting task G needed, task F to be completed. The processing times for tasks, A, B, C, D, E, F. and G are 28.2.1,0.9, 10, 1.2.1.8 are 4.7 minutes respectively. How many minimum numbers of workstations are needed? a. 1 b. 6 c. None is correct d. 3 e. 5 please I neef answer along with the formula don't put it on excel

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