Principles of Operations Management: Sustainability and Supply Chain Management, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780134467283
Author: HEIZER, Jay, RENDER, Barry, Munson, Chuck
Publisher: PEARSON
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Chapter 15, Problem 27P
Given the following demand for waiters and waitresses at S. Ghosh Bar and Grill, determine the minimum wait staff needed with a policy of 2 consecutive days off.
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The following jobs are waiting to be processed at Rick Solano’s machine center. Solano’s machine center has a relatively long backlog and sets a fresh schedule every 2 weeks, which does not disturb earlier schedules. Below are the jobs received during the previous 2 weeks. They are ready to be scheduled today, which is day 241 (day 241 is a workday). Job names refer to names of clients and contract numbers.
Job
Date job received
Productiondays needed
Date job due
BR-02
228
15
300
CX-01
225
25
270
DE-06
230
35
320
RG-05
235
40
360
SY-11
231
30
310
a. Complete the following table. (Show your supporting calculations.)
b.Which dispatching rule has the best score for flow time?
c. Which dispatching rule would you select? Support your decision.
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
Compare the differences between flow classification and flow scheduling?
Chapter 15 Solutions
Principles of Operations Management: Sustainability and Supply Chain Management, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (10th Edition)
Ch. 15 - Prob. 1EDCh. 15 - Prob. 1DQCh. 15 - Prob. 2DQCh. 15 - Prob. 3DQCh. 15 - Prob. 4DQCh. 15 - Prob. 5DQCh. 15 - Prob. 6DQCh. 15 - Prob. 7DQCh. 15 - Prob. 8DQCh. 15 - Prob. 9DQ
Ch. 15 - Prob. 10DQCh. 15 - Prob. 11DQCh. 15 - Prob. 12DQCh. 15 - Prob. 13DQCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Daniels Barber Shop at Newark Airport is open 7...Ch. 15 - Given the following demand for waiters and...Ch. 15 - Prob. 1CSCh. 15 - Prob. 2CSCh. 15 - Prob. 3CSCh. 15 - Prob. 4CSCh. 15 - Prob. 1.1VCCh. 15 - Prob. 1.2VCCh. 15 - Prob. 1.3VCCh. 15 - Prob. 2.1VCCh. 15 - Prob. 2.2VCCh. 15 - Why is seniority important in scheduling servers?Ch. 15 - Prob. 2.4VC
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- six patients are waiting in a hospital emergency room to receive care for variouscomplaints, ranging from a sprained ankle to a gunshot wound. The patients arenumbered in the sequence that they arrived and are given a priority weighting basedon the severity of the problem. There is only one doctor available.Patient 1 2 3 4 5 6Time required 20 min 2 hr 30 min 10 min 40 min 1 hrPriority 1 10 3 5 2 2a. Suppose that the patients are scheduled on an FCFS basis. Compute the meanflow time and the weighted mean flow time, where the weight is the priority numberassociated with each patient.b. Perform the calculations in part (a) for SPT sequencing.c. Determine a sequence different from those in parts (a) and (b) that achieves alower value of the weighted mean flow time.arrow_forwardWrite the Objectives of Workcenter Scheduling?arrow_forwardBriefly describe each of these priority rules:e. Rusharrow_forward
- 1b) Given the limited resources as indicated in the table above: Evaluate the officer’s chance to catch the robbers, if she arrives between minutes 47.5 and 49.5 after the robbery begins. [Calculate the probability for the critical path only]arrow_forwardIn week 13, the Yankee Machine Shop has the followingorders scheduled for Work Center 111. Calculate the capacityneeded.arrow_forwardBackground Info: The Somewhere, NJ library advising board, along with the local mayor and head of the library, recently met to discuss the need to update their current computers and network. The last update to these systems took place in 2003 and users within the town have begun to complain about the lack of computer-based resources available to them. Additionally, it has become harder to track the location of books and to determine when a book is out, overdue, needs replaced, etc. The board would like to incorporate newer technologies (e-books, videos, etc.) as well. Is this a program or a project? Does this fit into the realm of IT projects/Programs? Who are the Stakeholders? What types of resource do you think will be available? Write a Brief statement that includes the GOALS. Write a brief SCOPE Statementarrow_forward
- where the consulting company has five jobs in its backlog. Create a schedule usingthe EDD rule, calculating the average days past due and flow time. In this case, does EDD outperformthe FCFS rule?arrow_forwardMo. The I Love Operations Management (ILOM) Conference, a major international conference, is staffed by student volunteers. One of the tasks of the student volunteers is to register conference attendees. The registration process involves confirming that fees have been paid, retrieving a conference package specific to that person (filed under their last name), and passing on relevant information about the conference.  In 2023, conference registration will be handled by a group of 10 student volunteers who work in five pairs to register the attendees (i.e., each pair will together register one attendee at a time). Attendees line up in a common line to be served by the next available pair of volunteers. Attendees arrive at an average rate of 139 per hour (assume Poisson arrival distribution) and the service time is, on average, two minutes (following a negative exponential distribution).  What is the average time needed to register (includes waiting and registering), in minutes (round…arrow_forwardThe following jobs are waiting to be processed at thesame machine center. Jobs are logged as they arrive:JOB DUE DATE DURATION (DAYS)A 313 8B 312 16C 325 40D 314 5E 314 3 In what sequence would the jobs be ranked according to the follow-ing decision rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? All dates are specified as manufacturing planning calendar days. Assumethat all jobs arrive on day 275. Which decision is best and why?arrow_forward
- The Mowry Machine Shop still has five jobs to be processed as of 8 A.M. today​ (day 23​) at its bottleneck operation. The time since the order​ arrived, processing​ time, and promised due dates are given in the following table. The jobs are listed in the order of arrival.                                                                                          Job Time Since Order Arrived ​(days ago) Processing Time​ (days) Due Date ​(days from ​now) A 11 10 22 B 10 8 13 C 8 4 19 D 6 4 16 E 1 3 30  a. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due. Using the FCFS​ (first come, first​ served) decision rule for sequencing the​ jobs, the order​ is:  Sequence 1 2 3 4 5 Job A  B  C  D  E  Using the EDD​ (earliest due​ date) decision rule for sequencing the​ jobs,…arrow_forwardThe Mowry Machine Shop still has five jobs to be processed as of 8 A.M. today​ (day 23​) at its bottleneck operation. The time since the order​ arrived, processing​ time, and promised due dates are given in the following table. The jobs are listed in the order of arrival.                                                                                          Job Time Since Order Arrived ​(days ago) Processing Time​ (days) Due Date ​(days from ​now) A 11 10 22 B 10 8 13 C 8 4 19 D 6 4 16 E 1 3 30  a. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due. Using the FCFS​ (first come, first​ served) decision rule for sequencing the​ jobs, the order​ is:  Sequence 1 2 3 4 5 Job ▼  A E B C D ▼  E C B D A ▼  A B C E D ▼  A B D C E ▼  C B D E Aarrow_forwardCategorize different scheduling procedures for various types of service operations, such as restaurants, hospitals, and airlinesarrow_forward
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