- 1 5 11 6 9 4 11 9 9 10 7 11 9 8 12 9 Year 4 5 7 9 10 11 12 The following table shows the actual demand observed over the last 11 years Year 2 10 Demand 6 7 This exercise contains only parts b, c, and a b) Using the 5-year moving average, provide the forecast from periods 4 through 12 (round your responses to or decimal place) 6 8 Forecast Using the 3-year weighted moving average with weights 0,10,0.30, and 0 60, using 0 60 for the most recent period, provide the forecast from periods 4 through 12 cround your responses to two decimal places). Year 4 Forecast a Mean absolute deviation for the forecast developed using the 3-year moving average is 2.05 and for the 3-vear weighted moving average is 203 Based on this information, the better forecast is achieved using the approach 5 6 7 8 9 10 11 12