Question $5$

A project work breakdown structure and expected durations are as follows:

$\backslash$table$[[$Activity$,\backslash$table$[[$Normal$],[$Duration$]],\backslash$table$[[$Shortest$],[$Duration$],[($weeks$)]],\backslash$table$[[$Additional cost to$],[$crash an activity$],[($cost$/$week$)]],$Predecessor$],[1,1,1,0,-],[2,6,5,1,100,-],[3,2,1,2,200,1],[4,6,5,3,400,1],[5,3,2,2,200,2,3],[6,4,3,5,100,2,3],[7,6,5,450,4,5]]$

$[$a$]$ Create the AON network.

$[$b$]$ Identify the CPM$.$

$[$c$]$ Prepare a crash schedule to shorten the completion time by $2$ weeks.