Consider the time series below. Complete parts a through e below.

Period

$1$

$2$

$3$

$4$

$5$

$6$

$7$

$8$

Demand

$13$

$10$

$8$

$13$

$17$

$16$

$11$

$10$

Question content area bottom

Part $1$

$$a$)$ Forecast the demand for Period $9$ using exponential smoothing with alphaequals$0\mathrm{.}3.$

The forecasted demand for Period $9$ using exponential smoothing with alphaequals$0\mathrm{.}3$ is

$$

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$($Round to three decimal places as$$ needed.$)$