Question Set $3.$ Using only the Austin sales data: $1.$ Forecast sales for January $5^$th through January $30^$th using exponential smoothing with alpha set to $0\mathrm{.}6.$ Assume the sales forecast for January $4^$th was $644.(6$pts$)2.$ Using your forecasts from Q$3\mathrm{.}1,$ find the mean absolute deviation of the sales forecasts for January $5^$th through January $29^$th$.$ Again, you should not include the forecast for January $30^$th since there is no corresponding sales figure for that date. $(4$pts$)3.$ Using your forecasts from Q$3\mathrm{.}1,$ find the mean squared error of the sales forecasts for January $5^$th through January $29^$th$.(4$pts$)$ Reminder: Check your work to make sure you have only included forecasts and accuracy measures for the exact date ranges specified. Also, please copy these tables into your Excel file while solving.