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2. Consider the following data and using the formulas in the forecasting 2 year 1 Demand year 2 Demand 30 1 1 40

2. Consider the following data and using the formulas in the forecasting 2 year 1 Demand year 2 Demand 30 1 1 40

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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2. Consider the following data and using the formulas in the presentation forecasting 2 year 1 1 2 3 4 Demand year 2 1 2 3 4 30 50 55 25 Demand 40 70 65 50 a) Using Winters method determine So, Go and all seasonal factors b) Using data from part a determine the forecast for the 4th quarter of year 3 (t = 0, T = = 4) c) Assume that the demand of the first quarter of year 3 is 60. Update S₁, G₁, and c₁ Assume a = .15 ß = 2 y = .10 3. Consider Problem 2. a) Use Minitab to calculate the forecast for the 4th quarter of year 3. (use multiplicative version of winters method) b) Compare forecasting values using by hand calculations and Minitab and draw conclusions about the differences
Transcribed Image Text:2. Consider the following data and using the formulas in the presentation forecasting 2 year 1 1 2 3 4 Demand year 2 1 2 3 4 30 50 55 25 Demand 40 70 65 50 a) Using Winters method determine So, Go and all seasonal factors b) Using data from part a determine the forecast for the 4th quarter of year 3 (t = 0, T = = 4) c) Assume that the demand of the first quarter of year 3 is 60. Update S₁, G₁, and c₁ Assume a = .15 ß = 2 y = .10 3. Consider Problem 2. a) Use Minitab to calculate the forecast for the 4th quarter of year 3. (use multiplicative version of winters method) b) Compare forecasting values using by hand calculations and Minitab and draw conclusions about the differences
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