This question: 8 point possible The following table shows the actual demand observed over the last 11 years 1 2 3 4 5 O 11 Year Demand 8 7 9 10 6 9 5 9 12 18 12 8 13 0 This exercise contains only parts b, c, and d b) Using the 3-year moving average, provide the forecast from pericids 4 through 12 pround your responses to one decimal place) 5 6 7 8 9 10 11 12 Year Forecast Using the 3-year weighted moving average with weights 0.15, 0.25, and 0.60, using 0.60 for the most recent period, provide the forecast from periods 4 through 12 round your responses to two decimal place 5 0 9 10 11 12 Forecast d) Mean abedule deviation for the forecast developed using the 3-year moving average is 2.70 and for the 3-year weighted moving average is 3.35. Based on this information, the better forecast is achieved using the approach. 8 13