PROBLEM #$4$ Consider the project network and data shown below:

Answer in the Blue Sheet Below

$($You must show all formulas, calculations, and "highlight" corrrect Answers$)$

A$.$ Determine the critical path and the project completion time. Normal Crash Normal Crash Crash Cost

B$.$ Determine the crash cost per week for all activities. Complete the Chart at the Right Activity Slack Time Time Cost Cost Per Week

A $074$ $$400$ $$750$

B $1129$ $$1,000$ $$2,200$

C $076$ $$800$ $$1,100$

D $065$ $$600$ $$1,000$

E $086$ $$1,200$ $$2,200$

F $932$ $$800$ $$1,000$

G $932$ $$500$ $$650$

H $043$ $$400$ $$600$

I $065$ $$900$ $$1,300$

C$.$ Which activities need to be crashed to reduce the project's completion time by $4$ weeks? How much does this cost?