$2.$ Find Trend adjusted exponential forecast for predicting the sales of the data below for period $11.$ Initialize in period $5($start forecasting from period $6).$ The value of alpha $=0\mathrm{.}3$ and beta $=0\mathrm{.}2.$ Using Minitab or the excel sheet provided in canvas. After finding the forecast using the provided alpha and beta, recompute the forecast using the optimizes alpha and beta values that yields the lowest error $($SSE and$/$or MSE$)(15$ Points$)$