Consider the following time series data. (a) Choose the correct time series nlot (b) Develop a three-week moving average for this time series. Compute MSE and a forecast for week 7. Do not round intermediate calculations. If required, round your answers to two decimal places. MSE: The forecast for week 7: (c) Use a=0.2 to compute the exponential smoothing values for the time series. Compute MSE and a forecast for week 7 Do not round intermediate calculations. If required, round your answers to two decimal places. MSE: The forecast for week 7 (d) Compare the three-weekmoving averoge forecast with the exponential smoothing forecast using a w 0.2. Which appears to provide the better forecast based on MSE? fxplain. Using this approach results in a MSE, (e) Use trial and error to find a value of the exponential smoothing coefficient a that yields the minimum MSE, Do not round intermediate cakculations. Use a two-decimal digit precision for the exponential smoothing coefficient. aipha