MONTH ACTUAL January 110 A1 FEBURARY 130 A2 MARCH 150 A3 APRIL 170 A4 MAY 160 A5 JUNE 180 A6 JULY 140 A7 AUGUST 130 A8 September 140 A9 a) Forecast April through September using a three-month moving average. (Round your answers to 1 decimal place.) a. b) Use simple exponential smoothing with an alpha of 0.3 to estimate April through September, using the average of January through March as the initial forecast for April. (Do not round intermediate calculations. Round your answers to 2 decimal places.) a. c) Calculate MAD for each method. (Round your answers to 1 decimal place.) a.