Based on the given data, determine the following:

Activity Immediate Predecessor

Mean Time Variance A - 12 0.11 B - 9 1.78 C A 10 2.78 D B 10 1.78 E B, D 24 7.11 F C,D 10 4 G C,F 35 7.11 H G 40 2.78 I G 15 9

a) Draw AON diagram showing ES, EF, LS and LF? b) What is the critical path, project completion time and project variance c) You have estimated that only 70 % chance the project would have been finished in the said time of the customer. Determine the time the customer is demanding to sign off the project.