Monthly attendance at financial planning seminars for the past 24 months.

Monthly attendance at finandal planning seminars for the past 24 months, and forecasts and errors for those months, are shown in the following table. Determine if the forecast is working by computing a tracking signal, beginning with month 10, updating MAD with exponential smoothing. Use an alpha value of 0.2. (Round all your calculotions to three decimal points.)