The ABC company wants to develop a sales forecast for a fast$-$selling new product

line it has introduced, in order to help plan future production. The following

information has been gathered by the marketing department. The past weekly

average is $4,200$ and the trend has been $250$ additional units per week. This week's

demand was $4,600$ units. Using trend adjusted exponential smoothing, estimate

the forecasted sales for next week $($Assume $\backslash$alpha $=0\mathrm{.}20$ and $\backslash$beta $=0\mathrm{.}40).$