A project network is shown in the figure.

Use a forward and a backward pass to determine the critical path, and then fill out the following table. Activity times are in weeks. $($For the precedence activities, enter your answers as $0$

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|\}$

$\backslash$hline Activity & Precedence Activities & Activity Time $($weeks$)$ & ES & LS & EF & LF & Slack & Critical Path? $\backslash \backslash$

$\backslash$hline A & NONE & $66$ & $0$ & $0$ & $6$ & $6$ & $0$ & Yes $\backslash (\backslash$quad $\backslash )$ v $\backslash \backslash$

$\backslash$hline B & NONE & $4$ & $0$ & $0*$ & $4$ & $4$ x & $\backslash (0\backslash$times $\backslash )$ & No $\backslash (\backslash$quad $\backslash$checkmark $\backslash )\backslash \backslash$

$\backslash$hline C & NONE & $-$ & $\backslash (\backslash$checkmark $\backslash )$ & $0$ & $\backslash (\backslash$checkmark $\backslash )$ & $\backslash (\backslash$checkmark $\backslash )$ & $\backslash (\backslash$checkmark $\backslash )$ & Yes v $\backslash \backslash$

$\backslash$hline D & $-$ & $4*$ & $6$ & $6$ & $10$ & $10$ & $\backslash (\backslash$checkmark $\backslash )$ & Yes v $\backslash \backslash$

$\backslash$hline E & $*$ & $12$ & $9$ & $9,$ & $21$ & $21$ & $\backslash (\backslash$checkmark $\backslash )$ & Yes V $\backslash \backslash$

$\backslash$hline F & $-$ & $10$ & $10$ & $10$ & $20$ & $20$ & $\backslash (\backslash$checkmark $\backslash )$ & Yes v $\backslash \backslash$

$\backslash$hline G & $-$ & $3$ & $\backslash (10\backslash$times $\backslash )$ & $\backslash (10\backslash$times $\backslash )$ & $\backslash (13$ x $\backslash )$ & $\backslash (13\backslash$times $\backslash )$ & $0$ & Yes $\backslash (\backslash$checkmark $\backslash )\backslash \backslash$

$\backslash$hline H & $\backslash (\backslash$checkmark $\backslash )$ & $2$ & $21$ & $21$ & $23$ & $23$ & $\backslash (\backslash$checkmark $\backslash )$ & Yes V $\backslash \backslash$

$\backslash$hline I & $-$ & $9$ & $23$ & $23$ & $32$ & $32$ & $0$ & Yes $\backslash (\backslash$checkmark $\backslash )\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$