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Current Attempt in Progress

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

Aug

Sept

Oct

$5$

$11$

$13$

$6$

$9\mathrm{.}67$

$11\mathrm{.}60$

$10\mathrm{.}00$

$8\mathrm{.}06$

$8\mathrm{.}60$