Graph (iv) What type of pattern exists in the data? Horizontal pattern Develop a three-month moving average for this time series. Compute MSE and a forecast for month 8. If required, round your answers to two decimal places. Do not round intermediate calculation. MSE: The forecast for month 8: Use a = 0.2 to compute the exponential smoothing values for the time series. Compute MSE and a forecast for month 8. If required, round your answers to two decimal places. Do not round intermediate calculation. MSE: The forecast for month 8: Compare the three-month moving average forecast with the exponential smoothing forecast using a= 0.2. Which appears to provide the better forecast based o 3-month moving average v Use trial and error to find a value of the exponential smoothing coefficient a that results in the smallest MSE. Do not round intermediate calculations. Use a two-decimal digit precision for the exponential smoothing coefficient.