Question:

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

Week $1$: Cumulative Forecast Errors $=0\mathrm{.}00,$ MAD $=0\mathrm{.}00,$ Tracking Signal $=$

Week $2$: Cumulative Forecast Errors $=4\mathrm{.}00,$ MAD $=2\mathrm{.}00,$ Tracking Signal $=2\mathrm{.}00$

Week $3$: Cumulative Forecast Errors $=5\mathrm{.}20,$ MAD $=1\mathrm{.}73,$ Tracking Signal $=3\mathrm{.}00$

Week $4$: Cumulative Forecast Errors $=10\mathrm{.}16,$ MAD $=2\mathrm{.}54,$ Tracking Signal $=4\mathrm{.}00$

Week $5$: Cumulative Forecast Errors $=9\mathrm{.}13,$ MAD $=2\mathrm{.}24,$ Tracking Signal $=4\mathrm{.}08$

Week $6$: Cumulative Forecast Errors $=6\mathrm{.}30,$ MAD $=2\mathrm{.}34,$ Tracking Signal $=2\mathrm{.}70$

Week $7$: Cumulative Forecast Errors $=8\mathrm{.}04,$ MAD $=2\mathrm{.}25,$ Tracking Signal $=3\mathrm{.}57$

Week $8$: Cumulative Forecast Errors $=7\mathrm{.}43,$ MAD $=2\mathrm{.}05,$ Tracking Signal $=3\mathrm{.}63$

Week $9$: Cumulative Forecast Errors $=10\mathrm{.}94,$ MAD $=2\mathrm{.}21,$ Tracking Signal $=4\mathrm{.}96$

Week $10$: Cumulative Forecast Errors $=11\mathrm{.}75,$ MAD $=2\mathrm{.}07,$ Tracking Signal $=5\mathrm{.}68$

Week $11$: Cumulative Forecast Errors $=$ Enter your response here, MAD $=$ Enter your response here, Tracking Signal $=$ Enter your response here

Week $12$: Cumulative Forecast Errors $=$ Enter your response here, MAD $=$ Enter your response here, Tracking Signal $=$ Enter your response here