Your Turn $(2)$

$\backslash$table$[[$Activity$,$Predecessor,Optimistic,Normal,Pessimistic$],[$A$,-,2,4,6],[$B$,-,3,5,9],[$C$,$A$,4,5,7],[$D$,$A$,4,6,10],[$E$,$B C$,4,5,7],[$F$,$D$,3,4,8],[$G$,$E$,3,5,8]]$

Construct the AOA network diagram.

Identify the critical path. How long it will take to complete the project?

Find the probability that the critical path will be completed in $21$ weeks or less. Base your calculations on $($a$)99\mathrm{.}7\%,($b$)95\%$ and $($c$)90\%$ confidence intervals.

What should the project duration $($D$)$ be if we want a probability of $95\%$