Consider the following time series data: Week 1 2 3 4 5 6 Value 18 13 16 11 17 14 What are the forecasts for days 4 through 6 using a 3-period moving average model? Round the forecasts to two decimal places. With an alpha value of 0.4 and 0.2, what are the exponentially smoothed forecasts? Which exponential smoothing model provides better forecast, one using = 0.4 or = 0.2? (Submit only the excel le).