Consider the following time series data. a. Choose the correct time series plot. (i) (ii) (iii (iv) What type of pattern exists in the data? MSE: The forecast for week 7: . Compare the three-week moving average forecast with the exponential smoothing forecast using a=0.2. Which appears to provide the better f Explain. The input in the box below will not be graded, but may be reviewed and considered by your instructor: 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