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Exponential Smoothing Assignment 20 Marks 4\% The following two demand sets are to be used to test two different basic exponential smoothing models. The first uses an of 0.1 while the second uses an of 0.5 . In both cases the model should be initialised with a beginning forecast of 50 , that is the ESF forecast for Period 1 made at the end of Period 0 is 50 units. In each of the four cases (two models on two demand sets) compute the average forecast error and MAD. What do the results mean? Note: Feel free to use Excel to solve this assignment if required