Using simple exponential smoothing and the following time series data, respond to each of the items.

Period Demand

$1104$

$2132$

$3143$

$4137$

$5146$

$6150$

$7101$

$8126$

$9116$

$10115$

Compute all possible forecasts using a smoothing coefficient $(\backslash$alpha $)$ of $0\mathrm{.}3.$

Note: Negative amounts should be indicated by a minus sign. Round all your answers to $1$ decimal place except "Absolute Error and Absolute percent error" answers which should be rounded to $2$ decimal places.

Compute the MAD and MAPE.

Note: Round your answer to $2$ decimal places.

What is the forecast demand for period $11?$

Note: Round your answer to $1$ decimal place.

What is the error associated with period $11$s forecast?

Note: Round your answer to $2$ decimal places.