9. Use trend and seasonality components of demand to develop a better forecast (than the methods you used so far in this assignment) for each month of 2017. Follow the example we studied in class. Calculate: a) the average total % increase per year; b) the average weight (%) of each month. (15 marks) 10. In order to prove that this method is superior, use it (the average total % increase per year and the average weight of each month) to forecast for each month of 2016, based on 2014/2015, compare to the actual figures of 2016, and calculate its MAD. (10 marks)