The following table shows the actual demand observed over the last 11 years: Year Demand 1 2 3 4 894 5 7 13 9 12 6 7 8 9 10 11 13 10 9 8 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 responses to one decimal place). 4 5 6 7 8 9 10 11 12 Year Forecast