$6\mathrm{.}2$ Referring to exercise $1,$ develop a forecast for period $11$ using exponential smoothing and three Values of $$: $0\mathrm{.}05,0\mathrm{.}30,$ and $0\mathrm{.}090.$ Plot the actual data and the eponential averages for thev three values of three values of $.$ What do you observe

referring to exercise $1$ and $2,$ compare all five forecasting models. Which one would you recommend? Why?