6. The data le named days contains accounting data from the Winegard Co. of Burlington, Iowa. The data are the number of days until Winegard receives payment for 130 consecutive orders from a particular distributor of Winegard products. The time series contains outliers that are quite obvious from the time series plot. (a) Replace each of he unusual values with a value of 35 days, a much more typical value, and then estimate the parameters of an MACZ) model. (b) Now assume an MA(5) model and estimate the parameters. Compare these results with those obtained in part(a)