Date Union Lincoln Station Park 8/31/2015 526 485 9/1/2015 499 531 9/2/2015 461 540 9/3/2015 420 600 9/4/2015 436 484 9/5/2015 420 632 9/6/2015 381 580 9/7/2015 390 495 9/8/2015 347 607 9/9/2015 312 490 9/10/2015 300 511 9/11/2015 285 611 9/12/2015 340 600 9/13/2015 333 625 9/14/2015 295 563 9/15/2015 242 546 9/16/2015 236 520 9/17/2015 247 544 9/18/2015 175 700 9/19/2015 185 641 9/20/2015 166 566 9/21/2015 164 692 9/22/2015 185 585 9/23/2015 170 639 9/24/2015 169 674 9/25/2015 202 709 Question Set 2. Using only the Union Station sales data: 1. Forecast sales for September 1st through September 26h using exponential smoothing with a set to 0.6. Assume a, = 526 2. Forecast sales for September 1st through September 26th using double exponential smoothing with a and $ set to 0.5. Assume a, = 526 and bj = 0 and by = 499 - 526 - -27 3. Using your forecasts from Q2.1, find the mean squared error of the sales forecasts for September 1s through September 25th 4. Using your forecasts from Q2.2, find the mean squared error of the sales forecasts for September 15 through September 25th (Mean squared error is the sum across all data points of the squared difference between the data point and the forecast.)