Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134111056
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 7P
Sales for the past 12 months at Computer Success are given here. 
- Use a 3-month moving average to
forecast the sales for the months May through December. - Use a 4-month moving average to forecast the sales for the months May through December.
- Compare the performance of the two methods by using the mean absolute deviation as the performance criterion. Which method would you recommend?
- Compare the performance of the two methods by using the mean absolute percent error as the performance criterion. Which method would you recommend?
- Compare the performance of the two method by using the mean squared error as the performance criterion. Which method would you recommend?
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Students have asked these similar questions
1) View the video Service Processing at BuyCostumes (10.41 minutes, Ctrl+Click on the link); what are your key takeaways (tie to one or more of the topics discussed in Chapter 3) after watching this video. (viddler.com/embed/a6b7054c)
Note: As a rough guideline, please try to keep the written submission to one or two paragraphs.
2) Orkhon Foods makes hand-held pies (among other products). The firm’s weekly sales of hand-held pies over the past seven weeks are given in the table. The firm’s operations manager, Amarjargal, wants to forecast sales for week 8.
Weeks
Sales of hand-held pies(000s)
1
19
2
18
3
17
4
20
5
18
6
22
7
20
Forecast the week 8 sales using the following approaches:
a) Naïve approach
b) 5-month moving average
c) 3-month weighted moving average using the following weights: 0.50 for week 7, 0.30 for week 6, and 0.20 for week 5.
d) Exponential smoothing using a smoothing constant of 0.30, assume a…
Answer all parts to question 4 and show all working
1) View the video Service Processing at BuyCostumes (10.41 minutes, Ctrl+Click on the link); what are your key takeaways (tie to one or more of the topics discussed in Chapter 3) after watching this video. (viddler.com/embed/a6b7054c)
Note: As a rough guideline, please try to keep the written submission to one or two paragraphs.
2) Orkhon Foods makes hand-held pies (among other products). The firm’s weekly sales of hand-held pies over the past seven weeks are given in the table. The firm’s operations manager, Amarjargal, wants to forecast sales for week 8.
Weeks
Sales of hand-held pies(000s)
1
19
2
18
3
17
4
20
5
18
6
22
7
20
Forecast the week 8 sales using the following approaches:
a) Naïve approach
b) 5-month moving average
c) 3-month weighted moving average using the following weights: 0.50 for week 7, 0.30 for week 6, and 0.20 for week 5.
d) Exponential smoothing using a smoothing constant of 0.30, assume a week 2…
Chapter 8 Solutions
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (11th Edition)
Ch. 8 - Figure 8.9 shows summer air visibility...Ch. 8 - Kay and Michael Passe publish What‘s...Ch. 8 - Demand for oil changes at Garcia’s Garage has...Ch. 8 - Prob. 2PCh. 8 - Ohio Swiss Milk Products manufactures and...Ch. 8 - A manufacturing firm has developed a skills test,...Ch. 8 - The materials handling manager of a manufacturing...Ch. 8 - Marianne Kramer, the owner of Handy Man Rentals,...Ch. 8 - Sales for the past 12 months at Computer Success...Ch. 8 - Bradley’s Copiers sells and repairs photocopy...
Ch. 8 - Consider the sales data for Computer Success given...Ch. 8 - A convenience store recently started to carry a...Ch. 8 - Community Federal Bank in Dothan, Alabama,...Ch. 8 - The number of heart surgeries performed at...Ch. 8 - The following data are for calculator sales in...Ch. 8 - Prob. 14PCh. 8 - Forrest and Dan make boxes of chocolates for which...Ch. 8 - The manager of Alaina’s Garden Center must make...Ch. 8 - The manager of a utility company in the Texas...Ch. 8 - Franklin Tooling, Inc., manufactures specialty...Ch. 8 - Create an Excel spreadsheet on your own that can...Ch. 8 - Prob. 20PCh. 8 - Using the data in Problem 20 and the Time-Series...Ch. 8 - Prob. 22PCh. 8 - Cannister, Inc., specializes in the manufacture of...Ch. 8 - The Midwest Computer Company serves a large number...Ch. 8 - A certain food item at P=0.20 (with a combination...Ch. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - A manufacturing firm seeks to develop a better...Ch. 8 - How much does the forecasting process at Deckers...Ch. 8 - Prob. 2VCCh. 8 - What factors make forecasting at Deckers...Ch. 8 - Prob. 4VCCh. 8 - Prob. 5VCCh. 8 - Comment on the forecasting system being used by...Ch. 8 - Develop your own forecast for bow rakes for each...
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