The accompanying data file contains daily sales (in $) at Caf Venetian for 100 days. For cross-validation, let the training and the validation sets comprise the first 80 days and the last 20 days, respectively. pictureClick here for the Excel Data File a. Use the training set to Implement the Holt exponential smoothing method with two sets of user-supplied smoothing parameters, a=0.20 and 3-0.10 and a-0.30 and 3-0.20. Compute the resulting performance measures for the validation set. (Round final answers to 2 decimal places.). Parameters User-supplied 1 User-supplied 2 MSE because of the MAD b-1. Determine the preferred smoothing parameters for making the forecast? Forecast saies for the 101st day MAPE (N) out of 3 performance measures 4 b-2. Reestimate the preferred model with the entire data set to forecast sales for the 101st day (Round final answer to the nearest whole number.) A1 Day 2 1 32 4 3 54 6 5 7 6 87 98 10 9 11 10 12 11 13 12 14 13 15 14 16 15 17 16 18 17 19 18 20 19 21 20 22 21 23 22 24 23 25 24 26 25 27 26 28 27 29 28 30 29 31 30 32 31 A 33 32 34 33 35 34 36 35 37 36 38 37 312 459 392 Sales 263 215 311 356 243 282 382 289 358 269 361 314 379 281 384 405 284 291 332 594 436 397 428 466 526 845 B 521 373 773 753 461 759 701 692 B X Cafe Sales V C fr D Day E F G A1 70 69 71 70 72 71 73 72 74 73 75 74 76 75 77 76 78 77 79 78 80 79 81 80 82 81 83 82 84 83 85 84 86 85 87 86 88 87 89 88 90 89 91 90 92 91 93 92 94 93 95 94 96 95 97 96 98 97 99 98 100 99 101 100 102 103 104 A B 1176 977 1019 1071 1321 1192 1009 1595 945 1415 1234 1574 1406 1467 1087 1600 1588 1539 1416 1416 1645 1760 1575 1713 1764 2936 1600 1809 1781 1663 2663 2020 X C x [ +