Consider the following time series data. [. a. Use \\( \\alpha=0.2 \\) to compute the exponential smoothing forecasts for this time series. Compute MSE. 12.61 10.86 13.84 13.03 b. Use exponential smoothing with \\( \\alpha=0.2 \\) to develop a forecast for week 7 . 15.35 15.27 15.92 15.53 c. Use a smoothing constant of \\( \\alpha=0.4 \\) to compute the exponential smoothing forecasts. Compute MSE. 12.09 10.07 12.93 11.78 d. Use exponential smoothing with \\( \\alpha=0.4 \\) to develop a forecast for week 7 . 14.98 14.72 14.12 14.35