For the Texas Shipping Company, the monthly percentages of all shipments received on time over the past 12 months are 82, 86, 87, 89, 84, 85, 84, 86, 7 0, and 92. a. Construct a time series plot (you can include it in the work file question at the end, not here). Identify what type of pattern, if any, exists in the da Compare the three-month moving average forecast with an exponential smoothing forecast for alpha= 0.25 and answer the following: b. MSE for 3-month moving average method = c. MSE for exponential-smoothing method = d. Which method should be preferred? Answer "3-month MA" or "Exponential Smoothing":
For the Texas Shipping Company, the monthly percentages of all shipments received on time over the past 12 months are 82, 86, 87, 89, 84, 85, 84, 86, 7 0, and 92. a. Construct a time series plot (you can include it in the work file question at the end, not here). Identify what type of pattern, if any, exists in the da Compare the three-month moving average forecast with an exponential smoothing forecast for alpha= 0.25 and answer the following: b. MSE for 3-month moving average method = c. MSE for exponential-smoothing method = d. Which method should be preferred? Answer "3-month MA" or "Exponential Smoothing":
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:For the Texas Shipping Company, the monthly percentages of all shipments received on time over the past 12 months are 82, 86, 87, 89, 84, 85, 84, 86, 75, 95,
90, and 92.
a. Construct a time series plot (you can include it in the work file question at the end, not here). Identify what type of pattern, if any, exists in the data?
Compare the three-month moving average forecast with an exponential smoothing forecast for alpha= 0.25 and answer the following:
b. MSE for 3-month moving average method
c. MSE for exponential-smoothing method :
d. Which method should be preferred? Answer "3-month MA" or "Exponential Smoothing":
e. What is the forecast for next month using the preferred method?
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