In: Statistics and Probability
Use Simple Linear Regression (excel) on the table below. What is the MAD?
| Period | Month | Demand |
| 37 | January | 7077 |
| 38 | February | 7050 |
| 39 | March | 5430 |
| 40 | April | 5475 |
| 41 | May | 5504 |
| 42 | June | 6246 |
| 43 | July | 6361 |
| 44 | August | 6358 |
| 45 | September | 6379 |
| 46 | October | 6430 |
| 47 | November | 6720 |
| 48 | December | 7107 |
Running the linear regression in excel, I get the following output:
MAD - 5150

Here are the inputs required:

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