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 forward for each
Apply the Forecast ETS function to generate predictions for each month in 2003 based on the data from 1997-2002 (i.e., not "rolling" forward for each forecast), this time be sure to indicate the length of the season so the tool doesnt have to 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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