Calculate the expected time and variance for each activity

Assignment Help Operation Management
Reference no: EM131370838

You are responsible for managing an advertising and promotion project with the following activities (times are given in weeks).

Project               Immediate           Optimistic       Most Likely        Pessimistic        Expected        Activity

Activity           Predecessor(s)             Time                  Time                   Time                Time           Variance

A none 2   5 14          B none 8 11 14        C A 5   7   9

D A 6   9 12          E B, C, D 1   3   5

a. Using the PERT technique, calculate the Expected Time and Variance for each activity.

b. Using the calculated Expected Times (you may use Most Likely Time if you were unable to complete part a), draw a network diagram labeling each activity with the Letter, Expected Time, ES, EF, LS, and LF. Which activities are on the critical path?

c. What is the probability that the project will be completed within 16 weeks?

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