16.00 15.80 16.06
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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Transcribed Image Text:Week Value
Forecast
1
16
2
15
16.00
17
15.80
4
13
16.06
16
15.63
13
15.55
MSE: 3.70
The forecast for week 7: 15.04
d) Compare the three-week moving average forecast with the exponential smoothing forecast using a = 0.2. Which appears to provide the better forecast based on MSE?
Exponential Smoothing
Explain.
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
Exponential smoothing is better due to smaller MSE.
e) Use trial and error to find a value of the exponential smoothing coefficient a that results in a smaller MSE than what you calculated for a = 0.20. Use a two-decimal digit precision.
alpha: 0.2

Transcribed Image Text:Consider the following time series data.
Week
1
3
4
Value
16
15
17
13
16
13
6.
5.
2.
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