Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 6P
Marianne Kramer, the owner of Handy Man Rentals, rents carpet cleaners to contractors amid walk-in customers. She is interested in arriving at a
- Prepare a forecast for weeks 6 through 10 by using a 4-week moving average. What is the forecast for week 11?
- Calculate the mean absolute deviation as of the end of week 10.
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Marianne Schwartz, the owner of Handy Man Rentals, rents carpet cleaners to contractors and walk-in customers. She is interested in arriving at a forecast of rentals so that she can order
the correct quantities of supplies that go with the cleaners. Data for the last 10 weeks are shown here.
Week
1
2
3
4
8
9
10
Rentals
20
20
34
26
21
12
21
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19
14
a. Prepare a forecast for weeks 6 through 10 by using a 4-week moving average. (Enter your responses rounded to two decimal places.)
Week
Forecast
6
25.25
7
23.25
8
20
9
20
10
19.5
What is the forecast for week 11? 20 rentals. (Enter your response rounded to two decimal places.)
b. The mean absolute deviation as of the end of week 10 is rentals. (Enter your response rounded to two decimal places.)
14
Community General Hospital finds itself treating many bicycle accident victims. Data from the last seven 24-hour periods is shown below:
Day Bicycle Victims
1 8
2 14
3 8
4 14
5 18
6 15
With an alpha value of 0.31 and a starting forecast in day 3 equal to the 21 , what is the exponentially smoothed forecast for day 4? (Round to two decimal places)
15
What is the exponentially smoothed forecast for day 5? (Round to two decimal places)
16
Based on the following equation for a moving average forecast, what would have been the three week moving average forecast for week 53 for Small Town Restaurant (see downloaded file for actual demand)? Provide two decimal places and use normal rounding.
What happens if we increase the time periods in our moving average forecast to six weeks opposed to three?
Group of answer choices
It would be more accurate because it includes more data.
There would be no change.
It would be less sensitive to changes.
It would be better at predicting a trend.
Chapter 8 Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
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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