9 10 1 6 2 B 4 7 5 12 6 9 7 13 8 12 11 6 9 The following table shows the actual demand observed over the last 11 years: Year 3 Demand 4 This exercise contains only parte , and d. b) Uning the 3 year moving average provide the forecast from periods 4 through 12 (round your responses to ona decimal place), 67 10 Forecast 6 63 7.67 9.53 11 33 11.33 11.33 c) Using the 3-year weighted moving average with weights 0.16, 0.25, and 0.60, using 0.80 for the most recent period, provide the forecast from periods 4 through 12 (round your responses to two decimal places) Year 4 8 9 12 Forecast 11 Year 12 B 10 11 5 6 10 7