SALES($1000s) MONTH SALES($1,000s) MONTH 11 January 14 August 14 February 17 September 16 March 12 October 10 April 14 November 15 May 16 December 17 June 11 January 11 July Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows: Using a moving average with three periods, determine the demand for vacuum cleaners for next February. Using a weighted moving average with three periods, determine the demand for vacuum cleaners for February. Use 3, 2, and 1 for the weights of the most recent, second most recent, and third most recent periods, respectively. For example, if you were forecasting the demand for February, November would have a weight of 1, December would have a weight of 2, and January would have a weight of 3. Use exponential smoothing with a constant of 0.2 to forecast the demand for vacuum cleansers for January to February.
SALES($1000s) MONTH SALES($1,000s) MONTH 11 January 14 August 14 February 17 September 16 March 12 October 10 April 14 November 15 May 16 December 17 June 11 January 11 July Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows: Using a moving average with three periods, determine the demand for vacuum cleaners for next February. Using a weighted moving average with three periods, determine the demand for vacuum cleaners for February. Use 3, 2, and 1 for the weights of the most recent, second most recent, and third most recent periods, respectively. For example, if you were forecasting the demand for February, November would have a weight of 1, December would have a weight of 2, and January would have a weight of 3. Use exponential smoothing with a constant of 0.2 to forecast the demand for vacuum cleansers for January to February.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
SALES($1000s) |
MONTH |
SALES($1,000s) |
MONTH |
11 |
January |
14 |
August |
14 |
February |
17 |
September |
16 |
March |
12 |
October |
10 |
April |
14 |
November |
15 |
May |
16 |
December |
17 |
June |
11 |
January |
11 |
July |
|
|
Sales of industrial vacuum cleaners at R. Lowenthal Supply Co. over the past 13 months are as follows:
- Using a moving average with three periods, determine the demand for vacuum cleaners for next February.
- Using a weighted moving average with three periods, determine the demand for vacuum cleaners for February. Use 3, 2, and 1 for the weights of the most recent, second most recent, and third most recent periods, respectively. For example, if you were forecasting the demand for February, November would have a weight of 1, December would have a weight of 2, and January would have a weight of 3.
- Use exponential smoothing with a constant of 0.2 to forecast the demand for vacuum cleansers for January to February.
- Evaluate the accuracy of each of these methods ( Compute the MAD and MSE))
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