pharmacist has been monitoring sales of a certain over$-$the$-$counter pain relieverDaily sales during the last $15$ days were $12345678363843454546465151$ Day: Number sold: Day: Number sold: $10111314154654565850$ here for the Excel Data File $.$ Assume the data refer to demand rather than sales. Using trend $-$adjusted exponential smoothing with an initial forecast of $46$ for Day $8,$ an initial trend estimate of $2,$ and a $=$ B $=3$ develop demand forecasts for Days $9$ through $16.$ Then compute the resultant MSE using the error values from Days $8$ through $15.($Round your intermediate period $-$by$-$period forecast and error values to $3$ decimal places. Round your final MSE answer to $3$ decimal places $.)$