CASE STUDY [30 Marks] A computer network company installs network points. The project manager has been very concerned with the amount of time it took to complete several recent jobs. The data obtained (all in days) for a new contract are listed in the following table: Activity Immediate Predecessor Optimistic Time Most Likely Time Pessimistic Time A --------- 4 6 8 B --------- 2 4 6 C --------- 1 2 3 D B 6 7 8 E A 2 4 6 F E 6 10 14 G D 1 3 5 H C,D 3 6 9 I F, G, H 5 11 17 Answer ALL the questions in this section. Question 1 (10 Marks) Calculate the expected time of activities for this project. Question 2 (10 Marks) Construct an AON network for the activities of this contract. Question 3 (10 Marks) Determine the critical path for the project using slack.