c$)$ Compute the Cumulative Forecast$$ Errors, cumulative MAD in$$ thousands, and tracking signals $($round your responses to two decimal$$ places$).$

Week

Cumulative Forecast Errors

MAD

Tracking Signal

Week

Cumulative Forecast Errors

MAD

Tracking Signal

$1$

$7$

$2$

$8$

$3$

$9$

$4$

$10$

$5$

$11$

$$

$10\mathrm{.}32$

$$

$2\mathrm{.}49$

$$

$4\mathrm{.}14$

$6$

$12$

$$

$16\mathrm{.}25$

$$

$2\mathrm{.}78$

$$

$5\mathrm{.}85$

Part $5$

Are the tracking signals within acceptable$$ limits$?$

The control limits for the tracking signal are set at MADs. The tracking signal