Question: Using the exponential smoothing method with a = 0.8, calculate the forecast for each possible month of year 2014/2015/2016. Calculate the MAD, MSE and MAPE

Using the exponential smoothing method with a = 0.8, calculate the forecast for each possible month of year 2014/2015/2016. Calculate the MAD, MSE and MAPE for this method. Assume that the forecast for January 2014 was 50. Show one manual calculation of a forecast of this method, for any month you choose. (15 marks)
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