$10$

Using the data below, calculate the squared error for the $4$ th week. Use the $2$ period moving average to create the forecast.

Week

Time Series Value

$1$

$17\mathrm{.}00$

$2$

$16\mathrm{.}00$

$4$

$24\mathrm{.}00$

Submit

Answer format: Number Round to $1$ decimal places