Question: QUESTION THREE [25] The following table represents the 2020 forecast for Ndimane's Manufacturing; Month Actual Sales 2020 Forecast 2021 May 100 105 June 80 July

QUESTION THREE [25] The following table represents the 2020 forecast for Ndimane's Manufacturing; Month Actual Sales 2020 Forecast 2021 May 100 105 June 80 July 110 August 115 September 105 October 110 November 125 December 120 3.1 Calculate the 2021 forecast for the months of June to December using the exponential smoothing method with a smoothing constant of a = 0.2. (10) 3.2 Calculate the Mean Absolute Deviation (MAD) (8) 3.2 Compute the Mean Absolute Percentage Error (MAPE) (7)

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