PROJECT 4	Activity	Immediate Predecessors	(a)	(m)	(b)
	A	0	3	6	8
	B	A	5	8	10
	C	A	5	6	8
	D	B, C	1	2	4
	E	D	7	11	17
	F	D	7	9	12
	G	D	6	8	9
	H	F, G	3	4	7
	I	E, F, H	3	5	7

1. Draw the activity network diagram for this problem (either AON or AOA) [5 marks]
2. Determine the Expected Time and Variance for each activity. [3 marks]
3. Show the activity schedule (ES, EF, LS, and LF) as well as slack (in table). [4 marks]
4. Determine and state the critical path for this project. This must be based on your work in (c) and not by inspection. [2 marks]
5. What are the expected time and the variance of the project? [2 marks]
6. What is the probability the project will be completed in less than 32 weeks? [2 marks]
7. What time should be set such that there is a 95% chance of completion? [2 marks]