Operations Management In The Supply Chain Decisions And Cases 7th
7th Edition
ISBN: 9781259718779
Author: Roger G Schroeder And Susan Meyer Goldstein
Publisher: McGraw Hill Education
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Chapter 12, Problem 9P
a)
Summary Introduction
To determine: The first job to be processed based on SPT.
Introduction:
Gantt chart is the tool used to allocate the resources and
b)
Summary Introduction
To determine: The first job to be processed based on CR.
Introduction:
Gantt chart is the tool used to allocate the resources and schedule the tasks of projects.
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Homework Chapter 11
Solve the following Problems. Be sure to use Excel and Word for your work. All work needs to be shown.
Problem 1)
The Friendly Neighbor Grocery Store has a single checkout stand with a full-time cashier. Customers arrive randomly at the stand at a mean rate of 30 per hour. The service-time distribution is exponential, with a mean of 1.5 minutes. This situation has resulted in occasional long line complaints from customers. Therefore, because there is no room for a second checkout stand, the manager is considering the alternative of hiring another person to help the cashier by bagging the groceries. This help would reduce the expected time required to process a customer to 1 minute, but the distribution still would be exponential.
In response to complaints from customers, the manager now has adopted three guidelines for providing a satisfactory level of service to the customers. In particular, she would like to have the percentage of time that there are more than…
The following table contains information concerning four jobs that are awaiting processing at awork center.JobJob Time(days)Due Date(days)A 14 20B 10 16C 7 15D 6 17a. Sequence the jobs using (1) FCFS, (2) SPT, (3) EDD, and (4) CR. Assume the list is by orderof arrival.b. For each of the methods in part a, determine (1) the average job flow time, (2) the average tardiness, and (3) the average number of jobs at the work center.c. Is one method superior to the others? Explain.
Christine has three cars that must be overhauled by her ace mechanic, Megan. Given the following data about the cars, use least slack per remaining operation to determine Megan’s scheduling priority for each:Customer Pick-Up Remaining Overhaul Car Time (hours hence) Time (hours) Remaining Operation A 10 4 PaintingB 17 5 Wheel alignment, painting C 15 1 Chrome plating, painting, seat repair
Chapter 12 Solutions
Operations Management In The Supply Chain Decisions And Cases 7th
Ch. 12 - What types of scheduling decisions are management...Ch. 12 - Specify the kinds of objectives that might be...Ch. 12 - Prob. 3DQCh. 12 - How is the scheduling of patients in a doctor's...Ch. 12 - Describe the differences between Gantt charting,...Ch. 12 - Why are m n ma chine-scheduling algorithms not...Ch. 12 - What is the purpose of a planning and control...Ch. 12 - Prob. 8DQCh. 12 - Prob. 9DQCh. 12 - What scheduling rule should be applied to...
Ch. 12 - Prob. 11DQCh. 12 - Students must complete two activities to register...Ch. 12 - Prob. 2PCh. 12 - Sequence the jobs shown below by using a Gantt...Ch. 12 - In problem 3, assume there are two machines of...Ch. 12 - In problem 2, assume there are two machines of...Ch. 12 - The Security Life Insurance Company processes all...Ch. 12 - At the University Hospital, five blood samples...Ch. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Using the Gantt charts developed in the following...Ch. 12 - How would the theory of constraints be used to...
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