Calculate the expected time and variance of each activity

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Reference no: EM13660798

A project has the following data

activity	Immediate predecessor	Optimistic time	Most likely time	Pessimistic time
A	-	2	3	4
B	A	1	2	3
C	A	4	5	12
D	A	3	4	11
E	B	1	3	5
F	C	1	2	3
G	D	1	8	9
H	D,F	2	4	6
I	H	2	4	12
J	G	3	4	5
K	I,J	6	7	8

Required

Calculate the expected time and variance of each activity?

Draw a network diagram and identify critical path and project completion time?

What is the probability that the project will take more than 30 days to complete?

Reference no: EM13660798

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