Month Actual motor sales 3 month moving average January 20 February 24 March 26 April 32 May 38 June 46 July 52 August 60 September 56 October 36 November 32 December 28 1. Calculate 3 month moving average starting from April 2. Calculate 2 month weighted moving average starting from April weights are 3,2,1 starting from the very recent month. Meaning from April March is 3, February is 2, January is 1 and so on 3. Which one gives better result? Quarter Actual fan sales Forecast with α= .20 1 200 185 2 175 3 190 4 220 5 210 1. Calculate MAD