2) Consider a Technology Prototype project with the following network and direct cost data.

ID	Task	Immediate Predecessor	Normal Time (days)	Normal Cost ($0 000)	Crash Time (days)	Crash Cost ($0 000)
A	Identify System Reqmts		10	75	9	101
B	Develop Functional Reqmts	A	6	90	6	75
C	Draft Procedure for Building Prototype	A	8	105	6	155
D	Design Module 1	B	7	75	5	91
E	Design Module 2	B	6	150	5	210
F	Finalize "Build" Procedure	C	4	120	1	285
G	Develop Testing Protocol	F	3	70	1	114
H	Integrate and Build Modules 1+2 Prototype	D,E,F	4	90	3	135
I	Test Prototype	H,G	5	300	5	85

a. Identify the tasks on the critical path and compute the project duration with the normal time. b. Compute the crashing cost per day (slope) for each activity. c. Find the cheapest possible way to reduce the project duration by 4 days by answering the following questions. Please show work (note: assume that the indirect cost has no impact on your analysis)

• Which activities would you crash and how did you identify them?
• What is the extra cost to expedite the project by 4 days?