Using a three$-$month moving average, the forecast value for November in the following time series is

$\_\_\_\_\_\_\_\_\_\_\_\_.$

July $5$

Aug $11$

Sept $13$

Oct $6$

A$.11\mathrm{.}60$

B$.10\mathrm{.}00$

C$.9\mathrm{.}67$

D$.8\mathrm{.}60$

E$.6\mathrm{.}00$

$6.$ Using a three$-$month moving average $($with weights of $6,3,$ and $1$ for the most current value, next

most current value and oldest value, respectively$),$ the forecast value for November in the following

time series is $\_\_\_\_\_\_\_\_\_\_\_\_.$

July $5$

Aug $11$

Sept $13$

Oct $6$