Any help with following Excel homework problem question appreciated.

TABLE 7.12 MONTH DEMAND January 160 268 February March 170 April May 180 8. Using the data in Table 7.12, a. Compute an exponentially smoothed forecast with alpha 0.60 through May and create a forecast for the next month, June. b. the forecasts you computed by using an exponential smoothing model from Problems" and 12. Which forecasting model does a better job