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Observations            Actual Data              Forecast  1                              240                        192.39 2                              207                        202.15 3                              168                        189.27    Calculate MAD, MSE, MAPE & U All calculations are supposed to be done by hand, not on Excel.  Here is the formula sheet

Observations            Actual Data              Forecast  1                              240                        192.39 2                              207                        202.15 3                              168                        189.27    Calculate MAD, MSE, MAPE & U All calculations are supposed to be done by hand, not on Excel.  Here is the formula sheet

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Observations            Actual Data              Forecast 

1                              240                        192.39

2                              207                        202.15

3                              168                        189.27 

 

Calculate MAD, MSE, MAPE & U

All calculations are supposed to be done by hand, not on Excel. 

Here is the formula sheet 

4) Error Calculation Formulae t=1 а. MAD Σ- b. MSE = Y, – F, Y, t=1 с. МАРЕ 1+1 1+1 t=1 Y, d. U = 2 Y1-Y, 1+1 1=1 Y, 2.
Transcribed Image Text:4) Error Calculation Formulae t=1 а. MAD Σ- b. MSE = Y, – F, Y, t=1 с. МАРЕ 1+1 1+1 t=1 Y, d. U = 2 Y1-Y, 1+1 1=1 Y, 2.
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