Periodo Data Set 1 Data Set 3 Data Set 2 123210 Data Set 4 1 135.9 263 235 2 187.7 168481 769 268 w N 213.9 152316 523 263 166 122275 548 301 una 178.2 171219 300 324 6 207.6 148280 794 262 7 185 156707 559 285 8 182.5 151371 561 295 9 223 123214 328 306 10 200.5 140747 841 362 11 288.5 160832 598 336 12 201.2 131811 606 323 13 264.6 166009 388 429 14 245.4 163517 895 400 15 244 153399 630 401 Exercise 1: a) Forecast the next 5 periods of Data Set 1 using a method that does not give you more weight to recent data compared to past data. b) For Data Set 1, using the linear regression method with "tau" equal to one period, Calculate the average of the forecast errors for periods 10-15. c) Forecasting the next 5 periods of Data Set 2 using a method that gives you more weight to the most recent data. Try at least 3 different parameters for that method and determine which of those parameters give better results