Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)
12th Edition
ISBN: 9780134742205
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 11, Problem 8P
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A forecast of 240 units in January, 320 units in February, and 240 units in March has been approved for the seismic-sensory product family manufactured at the Rockport facility of Maryland Automated, Inc. Three products, A, B, and C, comprise this family. The product mix ratio for products A, B, and C for the past 2 years has been 35 percent, 40 percent,and 25 percent, respectively. Management believes that the monthly forecast requirements are evenly spread over the 4 weeks of each month. Currently, 10 units of product C are on hand. The company produces product C in lots of 40, and the lead time is 2 weeks. A production quantity of 40 units from the previous period is scheduled to arrive in week 1. Thecompany has accepted orders of 25, 12, 8, 10, 2, and 3 units of product C in weeks 1 through 6, respectively. Prepare a prospective MPS for product C and calculate the availableto-promise inventory quantities.
Using the accompanying log-log graph, answer the following questions:
What are the implications for management if it has forecast its cost on the optimum line?
What could be causing the fluctuations above the optimum line?
If management forecast the tenth unit on the optimum line, what was that forecast in hours?
If management built the tenth unit as indicated by the actual line, how many hours did it take?
PROBLEM 2:The manager of a large manufacturer of industrial pumps prepare forecasts for a six- month period.
Month Demand Forecast
1 492 488
2 470 484
3 485 480
4 493 490
5 498 497
6 492 493
Required: Compute for the MAD, MSE, and MAPE.
Chapter 11 Solutions
Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)
Ch. 11 - Consider the master flight schedule of a major...Ch. 11 - For an organization of your choice, such as where...Ch. 11 - Consider a service provider that is in the...Ch. 11 - Complete the MPS record in Figure 11.29 for a...Ch. 11 - Complete the MPS record in Figure 11.30 for a...Ch. 11 - Prob. 3PCh. 11 - Figure 11.31 shows a partially completed MPS...Ch. 11 - Tabard Industries forecasted the following demand...Ch. 11 - Figure 11.32 shows a partially completed MPS...Ch. 11 - The forecasted requirements for an electric hand...
Ch. 11 - A forecast of 240 units in January, 320 units in...Ch. 11 - An end items demand forecasts for the next 6 weeks...Ch. 11 - An end items demand forecasts for the next 10...Ch. 11 - Consider the bill of materials (BOM) in Figure...Ch. 11 - Product A is made from components B, C, and D....Ch. 11 - What is the lead time (in weeks) to respond to a...Ch. 11 - Product A is made from components B and C. Item B,...Ch. 11 - Refer to Figure 11.23 and Solved Problem 1. If...Ch. 11 - The partially completed inventory record for the...Ch. 11 - The partially completed inventory record for the...Ch. 11 - The partially completed inventory record for the...Ch. 11 - Figure 11.38 shows a partially completed inventory...Ch. 11 - A partially completed inventory record for the...Ch. 11 - The BOM for product A is shown in Figure 11.40,...Ch. 11 - The BOMs for products A & B and data from the...Ch. 11 - Figure 11.42 illustrates the BOM for product A....Ch. 11 - The following information is available for three...Ch. 11 - Figure 11.44 shows the BOMs for two products, A...Ch. 11 - The BOM for product A is shown in Figure 11.45....Ch. 11 - Refer to Solved Problem 1 (Figure 11.23) for the...Ch. 11 - The bill of materials and the data from the...Ch. 11 - The bill of materials and the data from the...Ch. 11 - The McDuff Credit Union advertises their ability...Ch. 11 - Suppose that the POQ for item B is changed from 3...Ch. 11 - As the on-hand inventory for item C increases from...Ch. 11 - As the fixed order quantity (FOQ) for item D...Ch. 11 - As the lead time for item C changes, what happens...
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- Scenario 3 Ben Gibson, the purchasing manager at Coastal Products, was reviewing purchasing expenditures for packaging materials with Jeff Joyner. Ben was particularly disturbed about the amount spent on corrugated boxes purchased from Southeastern Corrugated. Ben said, I dont like the salesman from that company. He comes around here acting like he owns the place. He loves to tell us about his fancy car, house, and vacations. It seems to me he must be making too much money off of us! Jeff responded that he heard Southeastern Corrugated was going to ask for a price increase to cover the rising costs of raw material paper stock. Jeff further stated that Southeastern would probably ask for more than what was justified simply from rising paper stock costs. After the meeting, Ben decided he had heard enough. After all, he prided himself on being a results-oriented manager. There was no way he was going to allow that salesman to keep taking advantage of Coastal Products. Ben called Jeff and told him it was time to rebid the corrugated contract before Southeastern came in with a price increase request. Who did Jeff know that might be interested in the business? Jeff replied he had several companies in mind to include in the bidding process. These companies would surely come in at a lower price, partly because they used lower-grade boxes that would probably work well enough in Coastal Products process. Jeff also explained that these suppliers were not serious contenders for the business. Their purpose was to create competition with the bids. Ben told Jeff to make sure that Southeastern was well aware that these new suppliers were bidding on the contract. He also said to make sure the suppliers knew that price was going to be the determining factor in this quote, because he considered corrugated boxes to be a standard industry item. As the Marketing Manager for Southeastern Corrugated, what would you do upon receiving the request for quotation from Coastal Products?arrow_forwardScenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What does the Institute of Supply Management code of ethics say about financial conflicts of interest?arrow_forwardScenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. 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I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. Ethical decisions that affect a buyers ethical perspective usually involve the organizational environment, cultural environment, personal environment, and industry environment. Analyze this scenario using these four variables.arrow_forward
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