Question $1$

$5$ Points

Problem $1$:$$Demand for the last three months was$$

$$Month $$June$$July$$August

$$Demand$141718$

Suppose the estimated simple regression equation in the given data is Y $=11+2$ X$.$Predict demand for July using Holt$$s model based on $=0\mathrm{.}5,$ and $=0\mathrm{.}5.$