Task time estimates for a production line setup project at Robert$$ Klassen's Ontario factory are as$$ follows:

Activity

Time

$($in hours$)$

Immediate$$ Predecessor$($s$)$

A

$7\mathrm{.}0$

long dash

B

$7\mathrm{.}5$

long dash

C

$5\mathrm{.}0$

A

D

$6\mathrm{.}0$

$$B$,$ C

E

$5\mathrm{.}1$

$$B$,$ C

F

$8\mathrm{.}4$

D

G

$5\mathrm{.}0$

$$E$,$ F

This exercise contains only part a$.$

Part $2$

$$a$)$ The correct activity$-$on$-$node $($AON$)$LOADING$...$ diagram for the project is shown in