The following time series shows the sales of a particular product over the past 12 months. (a) Construct a time series plot. What type of pattern exists in the data? The data appear to follow a seasonal pattern. The data appear to follow a cyclical pattern. The data appear to follow a trend pattern. The data appear to follow a horizontal pattern. =0.2 Je a smoothing constant of =0.4 to compute the exponential smoothing forecasts. (Round your answers to two decim Does a smoothing constant of 0.2 or 0.4 appear to provide more accurate forecasts based on MSE? A smoothing constant of 0.2 is better than a smoothing constant of 0.4 since the MSE is greater for 0.2 than for 0.4 . A smoothing constant of 0.4 is better than a smoothing constant of 0.2 since the MSE is greater for 0.4 than for 0.2 . A smoothing constant of 0.2 is better than a smoothing constant of 0.4 since the MSE is less for 0.2 than for 0.4 . A smoothing constant of 0.4 is better than a smoothing constant of 0.2 since the MSE is less for 0.4 than for 0.2