KFive jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the tablebelow. Each job requires work center Alpha before work center Beta. According to Johnson's rule, which job should be scheduled first in thesequence?OA. VOB. TOC. SOD. UJobI STD>RD VAlpha2019502611Beta2235202675 Ksequence?OA. VOB. TO C. SOD. UOE. RJobRSTU>VAlpha2019502611Beta2235202675

Answered: K Five jobs are waiting for processing…

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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Given the projects displayed in Table 18.21, if SPT is used to sequence the jobs, what isthe average inventory of the projects (in projects)?
n Canada, many people have complained that the waiting time in hospital emergency is oftenvery long. (Here, the waiting time is defined as the time from arrival to departure.)A typical service process in a hospital emergency has several stages:1. When patients arrive, they register personal information (such as health card number,reasons to be there) in a computer. Then, patients wait in an open waiting area.2. There is often one or two doctors whose offices are at the side of the open waiting area.The doctor(s) talks with the patients one by one to have preliminary diagnosis andprovide some help.3. Then, the patients wait in the same waiting area.4. A nurse arranges (part of) the patients to a closed area to wait for doctors.5. A nurse arranges the patients waiting in the closed area to individual rooms to wait fordoctors.6. A doctor helps the patients individually. Then, patients leave individually.According to your simulation, what is the bottleneck of reducing the waiting time?…
Total customer-response time (CRT) can be defined as which of the following? (Hint: Refer to textExhibit 14.14 and the accompanying discussion.)a. The difference between when a customer’s order is set up and when the order is finishedb. The elapsed time between when a customer places an order for a product and when that order isdelivered to the customerc. Manufacturing lead (cycle) time for the orderd. The time between when an order is received by manufacturing and when that order is completed
1
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
Machine 1 Machine m Mm Notation: MIP models for scheduling single stage "m" parallel machines Indices k-machine no.,k € (1.m) 1-job,i € (1.n) 1-job,j e (1. n} Input parameters m= total number of machines n= number of jobs Pprocessing time of job" d,- due date of job " M-large number Decision variables TO_startup time of job " Yu hinary variable, 1:1f job"C precedes job"f in the processing sequence,0: otherwise Wa- himary variable, 1:if job "Tis processed on machine "k",0 otherwise k machine no.,k € {1 - m} 1- Job,Ie (1. . m) 1-Job./E (1.n) M-total number of machines nnumber of Jobs A-processing time of fob "f d- due date of fob " M- large mumber Decision varlables xstartup time of job Yu= binary variable, 1:4f job precedes job " in the processing sequence,0: otherwise W-binary variable, 1:1f fob "C is processed on machine "k", 0: otherwtse
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Given the projects displayed in Table 18.21, if SPT is used to sequence the jobs, what isthe average flow time of the projects (in hours)?
b. The Healthy Food Restaurant, a 24-hour restaurant, faces changing requirements from hour tohour. More workers are needed for peak hours, and fewer are needed in between. The followingTable 6 (below) shows the worker requirement for the first 12 hours in the restaurant:Table 6. Staff Requirement at the Healthy Food RestaurantTime Period 10AM11AM12PM1PM2PM3PM4PM5PM6PM7PM8PM9PMRequirement 8 10 12 12 9 7 6 7 9 10 12 8AssignedOn DutyOverstaffed8(i) You are required to apply the first-hour principle to staff each hour with the required number ofcafeteria staff, showing how many staff are on duty each given hour, the number of staffyou have assigned to work each hour and any overstaffing for each hour. i. Schedule the staff to work in 8-hour shifts.
1.
If the jobs displayed in Table 18.20 are processed using the earliest-due-date rule, whatwould be the tardiness of job D?
TB MC Qu. 16-80 The owner/operator of the local franchise of... The owner/operator of the local franchise of Handyman, Inc., has four jobs to do today, shown in the order they were received: Job W X Y Z Processing Due Time (hrs) (hrs from now) 5 4 T 4 5 2 2 1 1 If he uses the earliest due date first priority rule to schedule these jobs, what will be the average job tardiness? Multiple Choice O O O 3 hours 2 hours 0 hours 4 hours

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