40 points) Smith Nevada, the managing editor of Your Horoscope magazine, needs to develop a fore

 3. (40 points) Smith Nevada, 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 6 months of publication were: Year 2018 Month January February March Sales 80 65 75 70 65 72 May June Smith does not believe that there is a seasonal pattern. He considers four different forecasting methods. Naive, Three-period Moving Average, Simple Exponential Smoothing with ?-03, and Trend Projection. Choose the best forecasting method of the four and develop a forecast for July 2018. (Use the first four months as the warm-up sample period and the r months as the forecasting sample period. The criteria of measuring forecast accuracy to be used are Bias, MSE, MAD, and MAPE.)