Given the series of demand data below Period: 1 2 3 4 5 6 7 8 9 10 Demand: 35 30 59 41 23 49 33 42 29 44 pictureClick here for the Excel Data File a. Calculate the forecasts for periods 7 through 11 using moving average models with n = 2, n = 4, and n = 6. (Round your intermediate calculations and final answers to 1 decimal place.)