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

1. Draw the project network using AON.
2. Identify the critical path.

3. What is the expected project completion time?

4.Draw a Gantt chart for the project. [PX]

\begin{tabular}{|l|l|l|} \hline ACTIVITY & TIME (IN HOURS) & IMMEDIATE PREDECESSORS \\ \hline A & 6.0 & - \\ \hline B & 7.2 & - \\ \hline C & 5.0 & A \\ \hline D & 6.0 & B, C \\ \hline E & 4.5 & B, C \\ \hline F & 7.7 & D \\ \hline G & 4.0 & E, F \\ \hline \end{tabular}