Scott Armstrong the managing editor of Your Horoscope magazine needs to develop

Scott Armstrong the managing editor of Your Horoscope magazine needs to develop a forecasting system for monthly newsstand sales in order to schedule press runs. Sales in thousands of copies for the first 7 months of publication were:Year Month Sales2013 August 50September 55October 65November 74December 802014 January 76February 86Scott does not believe there is a seasonal pattern. He is considering three different forecasting models: three-period moving average simple exponential smoothing with a = 0.7 and time series regression (i.e. trend projection). Determine the best forecasting model among the above three methods and develop a forecast for March 2014. Use the first four months as the warm-up sample period and the remaining months as the forecasting sample period. The criteria of measuring forecast accuracy to be used are Bias MAD MSE and MAPE.