A Broadway investor is interested in predicting the gross sales in millions. He is considering Attendance, Playing Total and New Productions. Run the Backwards Elimination method using the AIC criterion and determine what variable should be removed first. Season Gross($M) Attendance PlayingNew Total Productions 1990 267 7.32 976 30 1991 293 7.38 905 37 1992 328 7.86 1019 34 1993 356 8.11 1066 41 1994 406 9.04 1120 34 1995 436 9.47 1146 38 1996 499 10.57 1349 38 1997 558 11.48 1442 33 1998 588 11.67 1441 39 1999 503 11.39 1460 36 2000 560 11.9 1484 28 New Productions Attendance O Playing Total