Expected time le Optimistic time Immediate predecessor Most likely time m Pessimistic time b Activity LI 5 3 2 4 A B D E F G H 1 A B DF G EH 5 3 2 4 9 2 1 7 2 4 1 2 3 7 1 1 6 1 6 5 2 .5 15 3 1 12 3 2 1 6 2 Assume a project completion time of nineteen days after the project begins. From the above data, perform the following: a. Draw the PERT network, labeling activities, and compute ES, EF, LS. and LF. b. Determine the critical path as well as the total slack and free slack. c. What is the probability the project will be completed within eighteen days? d. What is the probability the project will require more than twenty days? Expected time le Optimistic time Immediate predecessor Most likely time m Pessimistic time b Activity LI 5 3 2 4 A B D E F G H 1 A B DF G EH 5 3 2 4 9 2 1 7 2 4 1 2 3 7 1 1 6 1 6 5 2 .5 15 3 1 12 3 2 1 6 2 Assume a project completion time of nineteen days after the project begins. From the above data, perform the following: a. Draw the PERT network, labeling activities, and compute ES, EF, LS. and LF. b. Determine the critical path as well as the total slack and free slack. c. What is the probability the project will be completed within eighteen days? d. What is the probability the project will require more than twenty days