Problem 4.2a Question Help The following table shows the actual demand observed over the last 11 years: 1 2 3 4 5 6 7 8 9 10 11 Year Demand 8 10 5 10 13 8 13 13 10 11 6 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). Year 4 5 6 7 8 9 10 11 12 Forecast 7.7 8.3 9.3 10.3 11.3 11.3 12.0 11.3 9 c) 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 (round your responses to two decimal places). Year 4 5 6 7 8 9 10 11 12 Forecast