Problem 6-05 Consider the following time series data. a. Choose the correct time series plot. (i) (ii) c. Use a=0.2 to compute the exponential smoothing values for the time series. Compute MSE and a forecast for week 7 . If required, round your answers to two decimal places. MSE: The forecast for week 7: d. Compare the three-week moving average forecast with the exponential smoothing forecast using a =0.2. Which appears to provide the better forecast based on MSE? b. Develop a three-week moving average for this time series. Compute MSE and a forecast for week 7 . If required, round your answers to two decimal places. MSE: The forecast for week 7 : (iii) (iv) What type of pattern exists in the data? e. Use trial and error to find a value of the exponential smoothing coefficient a that results in a smaller MSE than what you calculated for a=0.2. Any alpha greater than .2 but less than .58 provides better results. Any alpha less than .2 provides better results. Any alpha greater than 58 provides better results. Any alpha less than .2 or greater than .58 provides better results