#$13$

Using the data below, what is the simple exponential smoothing forecast for the $4$th week where $a=0\mathrm{.}4?$

$\backslash$table$[[$Week$,$Time Series Value$],[1,6\mathrm{.}00],[2,4\mathrm{.}00],[3,6\mathrm{.}00],[4,3\mathrm{.}00]]$

Answer format: Number: Round to: $1$ decimal places.

#$14$

Using the data below, what is the value of the absolute percent error for week $4?$

$\backslash$table$[[$Week$,$Time Series Value,Forecast$],[1,4,],[2,7,4\mathrm{.}00],[3,5,4\mathrm{.}00],[4,4,3\mathrm{.}00],[5,3,8\mathrm{.}00]]$

Attempts Remaining: $2$

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Answer format: Number: Round to: $2$ decimal places.

#$15$

Using the data below, what is the value of RMSE?

$\backslash$table$[[$Week$,$Time Series Value,Forecast$],[1,6,],[2,3,2\mathrm{.}00],[3,5,6\mathrm{.}00],[4,2,8\mathrm{.}00],[5,8,3\mathrm{.}00]]$