Question: Activity Immediate Optimistic Most Pessimistic Standard Variance Predecessor Likely Deviation A -- 4 5 6 0.333 0.111 B -- 12 15 18 1 1 C

Activity Immediate Optimistic Most Pessimistic Standard Variance
Predecessor Likely Deviation
A -- 4 5 6 0.333 0.111
B -- 12 15 18 1 1
C A 2 8 14 2 4
D A 5 5 5 0 0
E B, C 6 7 8 0.333 0.111

Answers
97% 22 & 1.111 ZERO 90%
A-B-C-D-E None 30 & 5.222 D
None 5 B & E 12
B-D B-E 22 & 1.054 Answers Must Be From This table Only

a) Which activities are on the critical path?
b) compute the slack time for activity E
c) What is the completion time and variance of the critical path?
d) Which activity has the most slack?
e) Assume the normal distribution is appropriate to use to determine the probability of finishing by a particular time. What is the probability that the project is finished in 24 weeks or fewer? (Round to two decimals.)
f) what is the latest possible time that C may be started without delaying completion of the project?

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