Question: A1 4 x vfx Year D G H E F Absolute Deviation MA(3) Absolute Deviation A B 1 Year Month Pairs 2 2018 January 3

A1 4 x vfx Year D G H E F Absolute Deviation

A1 4 x vfx Year D G H E F Absolute Deviation MA(3) Absolute Deviation A B 1 Year Month Pairs 2 2018 January 3 2018 February 4 2018 March 5 2018 April 6 2018 May 7 2018 June 8 2018 July 9 2018 August 10 2018 September 11 2018 October 12 2018 November 13 2018 December 14 2019 January ? 15 16 MA(1) 12,354 13,657 14,536 13,478 16,590 19,790 17,987 18,657 19,765 18,678 20,678 23,675 9 14 G A B D E F 16 17 1a. (15 pts) Use the moving average method (N=1) to forecast sales for each period. 18 Fill out the light gree cells in colume D 19 20 1b. (15 pts) Compute the mean absolute deviation (MAD). Show your steps in colume E. 21 MAD 22 23 1c. (15 pts) Use the moving average method (N=3) to forecast sales for each period. 24 Fill out the light gree cells in colume F 25 26 1d. (15 pts) Compute the mean absolute deviation (MAD). Show your steps in colume G. 27 MAD 28 29 1e. (10 pts) Which forecasting method is more accurate based on MAD, MA(1) or MA(3) ? Why? 30 31 32

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