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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Answered: Estimated times for the jobs of a…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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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.
A company is setting up an assembly line to produce 90 units per hour. The table below identifies the work elements, times, and immediate predecessors. Work Element Time (Sec.) Immediate Predecessor(s) A 25 - B 18 A C 20 A D 5 B, C E 12 C F 8 E G 16 D, F H 12 G Use one of the heuristic decision rules described in Table below to balance the assembly line so that it will produce 90 units per hour. Clearly state the decision rule you use and complete the below table using the selected rule. Decision Rule Logic Longest work element Picking the candidate with the longest time to complete is an effort to fit in the most difficult elements first, leaving the ones with short times to “fill out” the station. Shortest work element This rule is the opposite of the longest work element rule because it gives preference in workstation assignments to those work elements that are quicker. It can be tried…
Problem 1 The following data represent the plan of a project in Magic Corporation: Times (weeks) Activity A B C D DEF H 1 J Predecessor A A A B, C D E, F G G H, I a 4 2 2 1 3 4 1 1 3 1 m 5 4 4 WSST 5 4 5 3 8 42 b 12 12 6 9 565 6 9 11 3
7-383 A plant manager needs a design for an assembly line to assembly a new product that is being introduced. The time requirements and immediate predecessors for the work elements are as follows: Work Element Time (sec) Immediate Predecessor A 12 – B 60 A C 36 – D 24 – E 38 C, D F 72 B, E G 14 – H 72 – I 35 G, H J 60 I K 12 F, J Total = 435 1.If the desired output rate is 30 units per hour, what are the cycle time and theoretical minimum? 2.Suppose that we are fortunate enough to find a solution with just four stations. What is the idle time per unit, efficiency, and the balance delay for this solution?
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?
10. The backward pass is used to determine the Latest Start Time (LST) and Latest Finish Time (LFT) of tasks. The LFT of a task is the _____ of the LST of all succeeding tasks. a. Average b. Minimum c. Maximum d. Sum
William Beebe owns a small shoe store. He has 10 pairs of shoes that requireresoling and polishing. He has a machine that can resole one pair of shoes at atime, and the time required for the operation varies with the type and condition of theshoe and the type of sole that is used. Shoes are polished on a machine dedi-cated tothis purpose as well, and polishing is always done after resoling. His assistant generally does the polishing while Mr. Beebe does the resoling. The resoling and polishingtimes (in minutes) are Shoes Resoling Time Polishing Time1 14 32 28 13 12 24 6 55 10 106 14 67 4 128 25 89 15 510 10 5In what order should the shoes be repaired in order to minimize the total makespanfor these 10 jobs?
This is not statistics problem. The picture with table of values is the question and other picture is the problem. I only need c part to be solved.
WorkPro is a small manufacturer. It uses a job process for production. The following sample of jobs are listed in the order that they were received. Job Due Date Operation Time P 5 1 Q 20 8 R 8 5 S 11 6 T 3 12 When the shortest operating time (SOT) rule is applied to the sample of jobs, the resulting sequence is: A. Choos the following answer choice. T, P, R, S, Q R, S, T, P, Q P, Q, R, S, T P, R, S, Q, T B. In the WorkPro example above, average flow time for the sample of jobs when sequenced by the shortest operating time (SOT) rule is approximately: 19.8 14.2 4.8 6.4 C. In the WorkPro example above, average lateness for the sample of jobs when sequenced by the earliest due date (EDD) rule is approximately: Group of answer choices 10.4 4.8 7.8 5.8 D. Using the sample of jobs in the WorkPro example above, the shortest operating time (SOT) rule appears more attractive than the earliest due date (EDD) rule…
I need the last two questions which is the quarter 2 one and the last question in the other picture
Climate Control, Inc., makes expedition-quality rain gearfor outdoor enthusiasts. Management prepared a forecast ofsales (in suits) for next year and now must prepare a produc-tion plan. The company has traditionally maintained a levelworkforce strategy. All nine workers are treated like familyand have been employed by the company for a number ofyears. Each employee can produce 2,000 suits per month.At present, finished goods inventory holds 24,000 suits. Thedemand forecast follows:Use the Sales and Operations Planning with SpreadsheetsSolver in OM Explorer or develop your own spreadsheetmodels to address the following questions.a. Management is willing to authorize overtime in pe-riods for which regular production and current lev-els of anticipation inventory do not satisfy demand.However, overtime must be strictly limited to no morethan 20 percent of regular-time capacity. Managementwants to avoid stockouts and backorders and is notwilling to accept a plan that calls for shortages.…
"Mr. X is the supervisor for a dry cement packaging company. His work crew iscomposed of unskilled workers who load large transport trucks with bags ofcement, gravel, and sand. The work is hard, and the employee turnover rate ishigh. Employees record their attendance on separate time cards. Mr. Xauthorizes payroll payments each week by signing the time cards and submittingthem to the payroll department. Payroll then prepares the paychecks and givesthem to Mr. X, who distributes them to his work crew." Is there an internal control issue or none? Justify your answer.

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