using johnson's rule, what is the idle time at center 2 ?job D, e, f, gcenter 1: 13, 23, 16, 20center 2: 14, 13, 18, 17

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

Answered: using johnson's rule, what is the idle…

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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5:43 PMⒸ O bartleby.com/questions-and-answers/ bartleby Q SEARCH ASK LIVE TUTORING Expert Solution b NN Want to see the full answer? Check out a sample Q&A here :D Business » Operations Managem... » Consider a single server queuing syst... Question Consider a single server queuing system. The system starts at time t=0. The arrival time of customers is: 0.8, 1.4, 2.7, 3.2, 3.8, 8.0, 8.6, 9.0, 9.2, and 9.8. The departure times are: 2.2, 4.0, 5.0, 6.2, and 10.0. Time is in minutes. The first in first out queuing discipline is followed. Simulate this system for six clients and estimate: 21¹4 i) The average delay in the waiting line ii) The average number of clients in the waiting line at any time t iii) The expected utilization of server. SEE SOLUTION VX MAT : +
Short question 4- Leo manages a receiving station for rice. Farmers deliver their loads of rice with a rate of 150 tons per hour from 6:00 am to 2:00 pm. Leo can process them at a rate of 100 tons an hour. The station has room to hold only 200 tons of rice in inventory prior to processing. Once this space is filled, the farmers’ trucks must wait to dump their contents. Leo is considering using seasonal workers to help him with the processing of rice loads. When the seasonal workers are working, the processing rate increases to 125 tons per hour. The seasonal workers would start working at 10:00 am and finish working when the trucks stop waiting. At what time, Leo will finish processing loads of rice using these seasonal workers?
Allocate the tasks to workstations taking into consideration the precedence requirements and using the LOT rule to break ties between feasible tasks.
2. A small restaurant is creating a schedule for its wait staff to meet its expected weekly demand. The staff requirements have been determined to be: day monday tuesday wednesday thursday friday saturday sunday 1 staff 3. 3. The restaurant would like its staff to have two consecutive days off, with a preference given to Saturday and Sunday, or one of those two days if the pair is not possible. (a) Create a schedule to meet the staff requirements. How many wait staff are needed? (b) The restaurant believes regular maintenance of the kitchen is important. The kitchen staff would like 1 extra worker whenever they perform main- tenance. On which days of the week should maintenance be scheduled? (c) The restaurant wants to create a 'kid's day' (young children eat for free) to attract customers on days with low demand. Given your staff schedule, which day is best to implement this promotion.
Which job sequence would be used if ordered using the rule "Shortest Job First"? Group of answer choices a. 1,2,3,4 b. 4,3,1,2 c. 2,1,3,4 d. 2,3,4,1 e. 2,3,1,4
Description HW 1– Line Basics Instructions You have just been hired at a more advanced factory that produces two types of parts, A and B. The parallel machine production line produces (on average) part A 75% of the time and part B 25% of the time. Use the average time to produce each part at each workstation given in the table below to answer the following questions (keep your time based answers in minutes or units per minute): Part A (75%) Part B (25%) Workstation 1 6 Minutes 4 Minutes (2 Machines) Workstation 2 16 Minutes 8 Minutes (4 Machines) =======--- ====== :======
QUESTION #1 The figure shows the manufacturing processes, weekly market demands, unit revenues, and raw material requirements for two products. The products pass through a series of operations indicated by the circles. The products are manufactured on five machines. The machine assignments are shown by letters within the operation circles. The processing time for each operation is shown in minutes per unit adjacent to the circle. All setup times are zero. Operation E is an assembly operation that combines a unit from each of its two inputs to make the finished product 2. There are 5000 minutes per week available on each machine type. There is one of each type of machine. a. Use the theory of constraints to identify the bottlenecks in the system. Show all work used to find the bottleneck. b. For the bottlenecks discovered find the best product mix of P1 and P2. Show in your answer the rational for selecting the product mix. c. What is the maximum total profit per week? Product 1 Market…
QUESTION #4 Four delivery trucks are in a queue at a Tool Company with only one service bay. The trucks are identified by the sequence in which they arrived at the Company. Assume the time is 10:00 a.m. The table shows the times necessary to unload each vehicle and the periods when the commodities they contain are expected in the factory. Determine the schedules that result for each of the rules SPE, CR EDD, and FSFC. In each case compute the average tardiness, the number of tardy jobs, and mean flow time. Truck 1 2 3 4 5 Unloading Time (minutes) 23 16 39 12 30 Time Material is Due 10:15 AM 10:40 AM 10:55 AM 10:30 AM 10:40 AM
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Question 33 The processing times of five jobs are given as follows: Job Processing time (minutes) A 20 B 60 C 30 D 75 E 15 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 200 minutes. What is the average inventory if the jobs are processed in shortest processing time (SPT) order? Group of answer choices 3.00 2.92 1.97 2.20
4. The table shows projected cost for all possible combinations of four workers and job waiting processing. Find the optimal pairings. Values are in thousand pesos. Worker Job Job Job A B с Ada Bob 500 800 250 Chot 550 Dolly 450 700 450 750 450 350 200 500 Job D 900 900 650 800
Finite capacity scheduling Question 20 options: schedules jobs through a number of work centers, each with one or more machines. All of these choices are correct. is an extension of the theory of constraints. requires that jobs are scheduled whole (cannot be split).

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using johnson's rule, what is the idle time at center 2 ? job D, e, f, g center 1: 13, 23, 16, 20 center 2: 14, 13, 18, 17