Compute the cumulative forecast$$ errors, cumulative$$ MAD, and tracking signals $($round your responses to two decimal$$ places$).$

Week

Cumulative Forecast Errors

MAD

Tracking Signal

Week

Cumulative Forecast Errors

MAD

Tracking Signal

$1$

$0\mathrm{.}00$

$0\mathrm{.}00$

long dash$$

$7$

$8\mathrm{.}04$

$2\mathrm{.}25$

$3\mathrm{.}57$

$2$

$4\mathrm{.}00$

$2\mathrm{.}00$

$2\mathrm{.}00$

$8$

$7\mathrm{.}43$

$2\mathrm{.}05$

$3\mathrm{.}63$

$3$

$5\mathrm{.}20$

$1\mathrm{.}73$

$3\mathrm{.}00$

$9$

$10\mathrm{.}94$

$2\mathrm{.}21$

$4\mathrm{.}96$

$4$

$10\mathrm{.}16$

$2\mathrm{.}54$

$4\mathrm{.}00$

$10$

$11\mathrm{.}75$

$2\mathrm{.}07$

$5\mathrm{.}68$

$5$

$9\mathrm{.}13$

$2\mathrm{.}24$

$4\mathrm{.}08$

$11$

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$6$

$6\mathrm{.}30$

$2\mathrm{.}34$

$2\mathrm{.}70$

$12$

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