The following table shows the actual demand observed over the last 11 years: This exercise contains only parts b, c, and d. b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your rosponses to one decimal place) c) Using the 3 -year woighted moving average with weights 0.20,0.35, and 0.45 , using 0.45 for the most recent period, provide the from periods 4 through 12 (round your responses to two docimal places). Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses fo one decima/ place). F1Y1 Using the 3-year weighted moving average with weights 0.29,0.35, and 0.45 , using 0.45 for the most recent period, provide the forecast rom periods 4 through 12 (round your responses to two docimal places). 1) Mean absolute deviation for the forecast developed using the 3-year moving average is 2.88 and for the 3-year weighted moving average s 3.13. Based on this information, the better forecast is achieved using the approach