Construct an Activity on Arrow network diagram, for the project.

Analyse the network to determine the earliest and latest event times and the minimum project duration. Indicate the critical path for the project.

What is the total estimated cost of workers and machines for the project?

\begin{tabular}{|c|c|c|c|c|c|} \hline Activity & Predecessors & Duration (Days) & Workers needed (\$50/Hour) & Machines needed (\$100/Hour) & Percent completed after 6 working days \\ \hline A & & 2 & 8 & 3 & 100 \\ \hline B & & 6 & 4 & 6 & 100 \\ \hline C & & 2 & 3 & 8 & 100 \\ \hline D & & 2 & 8 & 0 & 100 \\ \hline E & A & 2 & 5 & 3 & 100 \\ \hline F & E & 4 & 6 & 3 & 70 \\ \hline G & B & 6 & 6 & 2 & 20 \\ \hline H & C & 2 & 5 & 2 & 95 \\ \hline I & F, G & 4 & 11 & 4 & 0 \\ \hline J & F, G & 3 & 4 & 2 & 0 \\ \hline K & D, H & 3 & 4 & 1 & 0 \\ \hline L & I & 3 & 4 & 0 & 0 \\ \hline M & I & 5 & 5 & 4 & 0 \\ \hline N & L & 3 & 7 & 2 & 0 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|c|} \hline Activity & Predecessors & Duration (Days) & Workers needed (\$50/Hour) & Machines needed (\$100/Hour) & Percent completed after 6 working days \\ \hline A & & 2 & 8 & 3 & 100 \\ \hline B & & 6 & 4 & 6 & 100 \\ \hline C & & 2 & 3 & 8 & 100 \\ \hline D & & 2 & 8 & 0 & 100 \\ \hline E & A & 2 & 5 & 3 & 100 \\ \hline F & E & 4 & 6 & 3 & 70 \\ \hline G & B & 6 & 6 & 2 & 20 \\ \hline H & C & 2 & 5 & 2 & 95 \\ \hline I & F, G & 4 & 11 & 4 & 0 \\ \hline J & F, G & 3 & 4 & 2 & 0 \\ \hline K & D, H & 3 & 4 & 1 & 0 \\ \hline L & I & 3 & 4 & 0 & 0 \\ \hline M & I & 5 & 5 & 4 & 0 \\ \hline N & L & 3 & 7 & 2 & 0 \\ \hline \end{tabular}