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Part $1$

Task time estimates for the modification of an assembly line at Robert$$ Klassen's Ontario factory are as follows.

Activity

Time

$($in hours$)$

Immediate$$ Predecessor$($s$)$

A

$6\mathrm{.}0$

$-$

B

$7\mathrm{.}5$

$-$

C

$4\mathrm{.}0$

A

D

$7\mathrm{.}0$

$$B$,$ C

E

$5\mathrm{.}0$

$$B$,$ C

F

$7\mathrm{.}5$

D

G

$4\mathrm{.}0$

$$E$,$ F

This exercise contains only parts$$ d$,$ b$,$ and c$.$

Part $2$

$$d$)$ Use the multipoint curve drawing tool five$$ times, draw a Gantt chartLOADING... for activities C through G of the project based on the early times.