The Action Toy Company has decided to manufacture a newtrain set, the production of which is broken into six steps.The demand for the train is 4,800 units per 40-hourworkweek: a) Draw a precedence diagram of thisoperation. b) Given the demand, what is the cycle time forthis operation? c) What is the theoretical minimum numberof workstations? d) Assign tasks to workstations. e) Howmuch total idle time is present each cycle? f) What is theefficiency of the assembly line with five stations? With sixstations?TASKPERFORMANCE TIME (sec)PREDECESSORSA20None301515AE10В. С30D, E

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Answered: hourworkweek: a) Draw a precedence…

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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17.22. Updike Upholstery cuts and sews fabric for custom ordered chairs, ottomans, and sofas. Often, the more complicated patterns are for the smaller pieces, where cutting is more time-consuming than sewing. Thus, cutting and sewing times vary. Today's list of jobs, shown below, are for an important customer who needs them shipped out (in one shipment) as soon as possible. Determine the sequence of jobs that will complete the customer's order as quickly as possible, and notify the customer when the order is expected to ship. Jobs Cutting Sewing А 4 2 6. 3 1 3 4 3 1 E
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Table : Task time pizza assembly Task Description Roll Dough Add pizza source Sprinkle cheese A B с D E F G H Task time (sec) Preceding task 60 30 35 25 Add sausage Add Pepperoni 35 Add Mushrooms 22 Shrink-wrap pizza 15 Add label 23 A B с с с D,E,F G Total time 245 sec Table above shows the task time and precedence relationships for a pizza assembly. The product time per day is 8 hours and the production schedule requires 300 pizzas per day by the assembly time. 1. Draw the precedence diagram of the operation. 2. Determine the cycle time of the line. 3. Calculate the minimum number of workstations for this operation. 4. Construct the line layout of the operations following by rules below: 5. Longest task time rule. 6. Number of following rules. 7. Compute the resulting efficiency and balance of delay percentages. 8. If a worker is paid RM35 per day, compute the cost of idleness per week (assuming a work 6-day week).
Could you explain in detail how you come up with the task assingmet of the workstations? what is the idle time and how to get it?
Job times which includes processing and set up times are shown below: Job Job Time (brs) Due Date (bs) 15 24 20 AMUO А B C 12 6 14 3 7 D B Using FCFS, determine the average tardiness 6
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A time study involving the preparation of hamburgers at Bill’s fast-food restaurant used the snap-back method to obtain the data (in minutes) shown below. Allowances typically constitute 15% of normal time. The schedule calls for 300 hamburgers to be prepared during the lunch rush. If each part-time employee works 190 minutes per day, how many employees will be needed? Observation Work Element 1 2 3 4 5 t F RF NT 1. Prepare Patty 0.45 0.41 0.50 0.48 0.36 1 0.9 2. Cook First side 0.85 0.81 0.77 0.89 0.83 1 1.2 3. Flip, press, and cook the other side 0.60 0.55 0.59 0.58 0.63 1 1.2 4. Assemble 0.31 0.24 0.27 0.26 0.32 1 1.0 Show work

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hourworkweek: a) Draw a precedence diagram of this operation. b) Given the demand, what is the cycle time for this operation? c) What is the theoretical minimum number