Question 18. Provide the adjusted exponential smoothing forecast for the following week(week 9) with alpha 0.4 and beta 0.3Question 19. Provide the 3-week moving average forecast for the following week(week 9). Question 20. Calculate the mean absolute deviation for the exponential smoothing forecast with alpha 0.4Question 21. Calculate the average error for the exponential smoothing forecast with alpha at 0.4

False Question 18 (3 points) Use the following data on the number of cans of soft drinks sold in a machine each week to answer questions 18-21. Time Period Actual Value ES Forecast (a=0.4) ES Forecast Error Trend (B=0.3) 338 219.0 119.0 265 266.6 -1.6 14.3 323 266.0 57.0 9.8 288.8 -19.8 13.7 278 280.9 -2.9 7.2 199 279.7 19.3 4.7 287.4 18) Provide the adjusted exponential smoothing forecast for the following week (week 9) with