Harlen Industries Limited has a simple forecasting model whose forecast demand has been plotted against actual demand for an 8 months duration. The firm uses an average weekly demand which is shown below: WEEK FORECAST DEMAND ACTUAL DEMAND   1 140 135   2 150 160   3 165 155   4 170 175   5 155 180   6 160 150   7 170 145   8 135 140     Compute the Mean Absolute Deviation (MAD) of the Harlen industries limited?                                                                                                        Calculate the Mean Square Error (MSE) for Harlen industries Limited?                                                                                                      Calculate the Cumulative Forecast Error (CFE) of Harlen industries limited?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Harlen Industries Limited has a simple forecasting model whose forecast demand has been plotted against actual demand for an 8 months duration. The firm uses an average weekly demand which is shown below:

WEEK

FORECAST DEMAND

ACTUAL DEMAND

 

1

140

135

 

2

150

160

 

3

165

155

 

4

170

175

 

5

155

180

 

6

160

150

 

7

170

145

 

8

135

140

 

 

  1. Compute the Mean Absolute Deviation (MAD) of the Harlen industries limited?

                                                                                                      

  1. Calculate the Mean Square Error (MSE) for Harlen industries Limited?

                                                                                                    

  1. Calculate the Cumulative Forecast Error (CFE) of Harlen industries limited?
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