Chapter $3,$ Question $7,$ part a:

Task time estimates for the modification of an assembly line at Jim Goodale's Carbondale, Illinois, factory are as follows:

$\backslash$table$[[,$ACTIVITY TIME $($IN HOURS$),\backslash$table$[[$IMMEDIATE$],[$PREDECESSORS$]]],[$A$,6\mathrm{.}0,-],[$B$,7\mathrm{.}2,-],[$C$,5\mathrm{.}0,$A$],[$D$,6\mathrm{.}0,$B$,$ C$],[$E$,4\mathrm{.}5,$B$,$ C$],[$F$,7\mathrm{.}7,$D$],[$G$,4,$E$,$ F$]]$

$($a$)$ Draw the project network using AON.

$($b$)$ Identify the critical path.

$($c$)$ What is the expected project length?

$($d$)$ Draw a Gantt chart for the project.

An AOA network is needed for this question

None of the above

A$)$ An AOA network is needed for this question

B$)$ None of the above

Solutions C$/$D & E are provided in the picture