Question: Apply the Forecast ETS function to generate predictions for each month in 2003 based on the data from 1997-2002 (i.e., not rolling), and do not
Apply the Forecast ETS function to generate predictions for each month in 2003 based on the data from 1997-2002 (i.e., not "rolling"), and do not specify the length of the season (here we will let the tool guess). Compute the mean absolute deviation (MAD) of the forecast errors for 2003. (please round to the closest whole number)
| Year | Month | Attendance: Phantom Of The Opera |
| 1997 | 1 | 48241 |
| 1997 | 2 | 47442 |
| 1997 | 3 | 61929 |
| 1997 | 4 | 49939 |
| 1997 | 5 | 49103 |
| 1997 | 6 | 62617 |
| 1997 | 7 | 48731 |
| 1997 | 8 | 63147 |
| 1997 | 9 | 44623 |
| 1997 | 10 | 47854 |
| 1997 | 11 | 58117 |
| 1997 | 12 | 49582 |
| 1998 | 1 | 48411 |
| 1998 | 2 | 49184 |
| 1998 | 3 | 62259 |
| 1998 | 4 | 48761 |
| 1998 | 5 | 58877 |
| 1998 | 6 | 48727 |
| 1998 | 7 | 47831 |
| 1998 | 8 | 59759 |
| 1998 | 9 | 42394 |
| 1998 | 10 | 48289 |
| 1998 | 11 | 58828 |
| 1998 | 12 | 49151 |
| 1999 | 1 | 58816 |
| 1999 | 2 | 44063 |
| 1999 | 3 | 45694 |
| 1999 | 4 | 48395 |
| 1999 | 5 | 57039 |
| 1999 | 6 | 47076 |
| 1999 | 7 | 45297 |
| 1999 | 8 | 59088 |
| 1999 | 9 | 40147 |
| 1999 | 10 | 55407 |
| 1999 | 11 | 43413 |
| 1999 | 12 | 44463 |
| 2000 | 1 | 52690 |
| 2000 | 2 | 45973 |
| 2000 | 3 | 48846 |
| 2000 | 4 | 61591 |
| 2000 | 5 | 44835 |
| 2000 | 6 | 44924 |
| 2000 | 7 | 53819 |
| 2000 | 8 | 44785 |
| 2000 | 9 | 37398 |
| 2000 | 10 | 50258 |
| 2000 | 11 | 41547 |
| 2000 | 12 | 53517 |
| 2001 | 1 | 45223 |
| 2001 | 2 | 44576 |
| 2001 | 3 | 45542 |
| 2001 | 4 | 60163 |
| 2001 | 5 | 42162 |
| 2001 | 6 | 43490 |
| 2001 | 7 | 54132 |
| 2001 | 8 | 45279 |
| 2001 | 9 | 33231 |
| 2001 | 10 | 36014 |
| 2001 | 11 | 34536 |
| 2001 | 12 | 48928 |
| 2002 | 1 | 39885 |
| 2002 | 2 | 42887 |
| 2002 | 3 | 55723 |
| 2002 | 4 | 39980 |
| 2002 | 5 | 36962 |
| 2002 | 6 | 50719 |
| 2002 | 7 | 45134 |
| 2002 | 8 | 46564 |
| 2002 | 9 | 43494 |
| 2002 | 10 | 37235 |
| 2002 | 11 | 35313 |
| 2002 | 12 | 52173 |
| 2003 | 1 | 36906 |
| 2003 | 2 | 32260 |
| 2003 | 3 | 44107 |
| 2003 | 4 | 43868 |
| 2003 | 5 | 39131 |
| 2003 | 6 | 55393 |
| 2003 | 7 | 46245 |
| 2003 | 8 | 56991 |
| 2003 | 9 | 34464 |
| 2003 | 10 | 42106 |
| 2003 | 11 | 50085 |
| 2003 | 12 | 41936 |
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