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(b) Use a = 0.1 to compute the exponential smoothing values for the time series. (Round your answers to four decimal places.) Time Series Value Month t Forecast F. 1 105 135 105 3 120 108 4 105 109.20 90 108.78 120 106.90 145 108.21 8 140 111.89 9 100 114.70 10 80 113.23 11 100 109.90 12 110 108.91 (c) 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 = 0.1. a = 109.01

(b) Use a = 0.1 to compute the exponential smoothing values for the time series. (Round your answers to four decimal places.) Time Series Value Month t Forecast F. 1 105 135 105 3 120 108 4 105 109.20 90 108.78 120 106.90 145 108.21 8 140 111.89 9 100 114.70 10 80 113.23 11 100 109.90 12 110 108.91 (c) 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 = 0.1. a = 109.01

MATLAB: An Introduction with Applications
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 correct my answers for part b and c
(b) Use a = 0.1 to compute the exponential smoothing values for the time series. (Round your answers to four decimal places.) Time Series Value Month t Forecast F. 1 105 135 105 120 108 4 105 109.20 90 108.78 120 106.90 145 108.21 140 111.89 6. 100 114.70 10 80 113.23 11 100 109.90 12 110 108.91 (c) 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 = 0.1. %3D a = 109.01
Transcribed Image Text:(b) Use a = 0.1 to compute the exponential smoothing values for the time series. (Round your answers to four decimal places.) Time Series Value Month t Forecast F. 1 105 135 105 120 108 4 105 109.20 90 108.78 120 106.90 145 108.21 140 111.89 6. 100 114.70 10 80 113.23 11 100 109.90 12 110 108.91 (c) 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 = 0.1. %3D a = 109.01
The following time series shows the sales of a particular product over the past 12 months. Month Sales 105 135 3 120 4 105 90 120 145 140 6. 100 10 80 11 100 12 110
Transcribed Image Text:The following time series shows the sales of a particular product over the past 12 months. Month Sales 105 135 3 120 4 105 90 120 145 140 6. 100 10 80 11 100 12 110
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