Question $17(15$ points$)$

Use exponential smoothing with trend adjustment to forecast deliveries for period $10.$ Let alpha $=0\mathrm{.}4,$ beta $=0\mathrm{.}2,$ and let the initial trend value be $4$ and the initial forecast be $200.$ The equation and last F$,$ T and FIT are necessary

$($Forecast $=6$ pts; Trend $=6$ pts; FIT $=3$ pts$)$

Actual

$\backslash$table$[[\frac{\text{P}\text{e}\text{r}\text{i}\text{o}\text{d}}{?},$Demand,$],[1,,200],[2,,212],[3,,214],[4,222,],[5,,236],[6,,221],[7,240,],[8,,244],[9,250,],[10,,266]]$