Question

(50 points) Data regarding the activities for a project are presented below. The times are in weeks The critical path for this project is A-D-H-I-J-K 2. Pessimistic Time Most Likely Time y Optimistic Time 8 16 10 8 10 12 8 14 5 6 2 a. Determine the standard deviation of the critical path. b. Determine the probability of completing the project in 38 weeks or less c What is the probability of completing the project in 32 weeks or less? 3 (5 points) Describe the stages of the project life cycle 4 (5 points) Describe the four major steps in the project-planning process

Answer 1

Activi Most likel Expected time Optimistic Pessimistic Variance (B2+C2*4+D2)/6 (B3+C3 *4+D3)/6 14 ((D2-B2)/6)42 ((D3-B3)/6)42 (D4-B4)/6)A2 ((D5-B5)/6)42 ((D6-B6)/6)42 ((D7-B7)/6)42 ((D8-B8)/6)42 ((D9-B9)/6)42 ((D10-B10)/6)A2 ((D11-B11)/6)A2 ((D12-B12)/6)A2 16 12 10 (B5+C5*4+D5)/6 (B6+C6*4+D6)/6 (B7+C7*4+D7/6 (B8+C8 *4+D8)/6 (B9+C9*4+D9)/6 (B10+C10 4+D10)/6 (B11+C11*4+D11)/6 10 10 16 14 B12+C12*4+D12)/6 12

13 1 Activity Optimistic Most likely Pessimistic Expected time Variance 9.50 3.00 12.00 5.50 6.00 8.00 3.00 3.00 9.00 7.00 2.50 1.361 1.000 1.778 1.361 0.444 0.444 1A 16 6 10 10 1.000 2.778 2.778 10 16 1A 5 12