b. The mean absolute deviation as of the end of week 10 is 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.)
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter13: Regression And Forecasting Models
Section13.7: Exponential Smoothing Models
Problem 28P: The file P13_28.xlsx contains monthly retail sales of U.S. liquor stores. a. Is seasonality present...
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Question
![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
26
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.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff5de9392-2d38-4421-a863-2e8923f604d2%2Fdb10de62-f576-4437-b38f-f3f69ddba09c%2Fb1yfzg_processed.png&w=3840&q=75)
Transcribed Image Text: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
26
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.)
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