The following table shows the actual demand observed over the last 11 years: Year Demand 1 7 2 8 Year Forecast 4 3 5 4 5 4 7 5 5 13 6 This exercise contains only parts b, c, and d. b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses to one decimal place). 7 6 9 7 8 7 11 8 9 8 13 9 10 9 9 c) Using the 3-year weighted moving average with weights 0.20, 0.25, and 0.55, using 0.55 for the most recent period, provide the forecast from periods 4 through 12 (round your responses to two decimal places). 6 11 Year Forecast 10 10 13 11 12 11 7 12 d) Mean absolute deviation for the forecast developed using the 3-year moving average is 2.41 and for the 3-year weighted moving average is 2.73. Based on this information, the better forecast is achieved using the approach.
The following table shows the actual demand observed over the last 11 years: Year Demand 1 7 2 8 Year Forecast 4 3 5 4 5 4 7 5 5 13 6 This exercise contains only parts b, c, and d. b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses to one decimal place). 7 6 9 7 8 7 11 8 9 8 13 9 10 9 9 c) Using the 3-year weighted moving average with weights 0.20, 0.25, and 0.55, using 0.55 for the most recent period, provide the forecast from periods 4 through 12 (round your responses to two decimal places). 6 11 Year Forecast 10 10 13 11 12 11 7 12 d) Mean absolute deviation for the forecast developed using the 3-year moving average is 2.41 and for the 3-year weighted moving average is 2.73. Based on this information, the better forecast is achieved using the approach.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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please answer all parts within 30 minutes.
Transcribed Image Text:The following table shows the actual demand observed over the last 11 years:
Year
Demand
1
7
2
8
Year
Forecast
3
5
4
4
7
5
6
5
13
6
This exercise contains only parts b, c, and d.
b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses to one
decimal place).
7
6
9
7
8
7
11
8
9
8
13
9
10
9
9
c) Using the 3-year weighted moving average with weights 0.20, 0.25, and 0.55, using 0.55 for the most recent period,
provide the forecast from periods 4 through 12 (round your responses to two decimal places).
4 5
Year
Forecast
10
11
10
13
11
12
11
7
12
d) Mean absolute deviation for the forecast developed using the 3-year moving average is 2.41 and for the 3-year
weighted moving average is 2.73. Based on this information, the better forecast is achieved using the
approach.
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