(c) Use a 0.2 to compute the exponential smoothing values for the time series, Time Series Value Week 1 2 3 4 5 6 18 11 16 10 17 15 Forecast 15 17 16.80 15.91 15.53 Compute MSE. (Round your answer to two decimal places.) MSE 100 What is the forecast for week 77 (Round your answer to two decimal places.) 15.53 (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? Explain The three-week moving average provides a better forecast since it has a larger MSE than the smoothing approach. The exponential smoothing using a 0.2 provides a better forecast since it has a smaller MSE than the three-week moving average approach. The exponential smoothing using a = 0.2 provides a better forecast since it has a larger MSE than the three-week moving average approach. The three-week moving average provides a better forecast since it has a smaller MSE than the smoothing approach