Problem 4.11 Question Help Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table: 4 Year Registrations (000) 1 4.00 2 7.00 3 3.00 5 11.00 6 8.00 7 8.00 8 11.00 9 10 11 11.00 14.00 15.00 6.00 a) Calculate the forecasted registrations for years 2 through 12 using exponential smoothing, with a smoothing constant (a) of 0.30 and starting forecast of 4.00 for year 1 (round your responses to one decimal place): 1 2 3 4 5 6 7 9 10 11 12 Year Forecast (000) 8 7.4 4.00 4.0 4.9 4.3 4.8 6.7 7.1 8.4 9.2 10.6 12.0 b) Mean absolute deviation based on the forecast developed using the exponential smoothing method (with a smoothing constant (a) = 0.30 and a starting forecast of F1 = 4.00) is registrations (round your response to one decimal place)