Forecasts and actual sales of MP3 players at Just Say Music are as follows: MSE values based on the two- and three-period moving average are 827.29 and 1,097.60, respectively. Find the best single exponential smoothing model by evaluating the MSE from 0.1 to 0.9, in increments of 0.1. Do not round intermediate calculations. Round your answers to two decimal places. The model based on a smoothing constant of is the best. How does this model compare with the moving average models? The model has the lowest MSE value