Can you solve all questions , Please . Problem- 5 and Problem-6

PROBLEM 5 O V slack activity imm opt. mst pess. dur. pred. est. prob est. A 5 6 7 B 3 5 7 4 5 6 D A 3.5 4 4.5 E 3 4 5 F BE 5.5 6 6.5 G DF 5 10 15 H BE 2 5 8 6 8 10 J G.HU 2 3 - 1 Given: A project consisting of 10 activities, as shown in the table above. The immediate predecessors, and the optimistic, most probable, and pessimistic time estimates for each activity are also shown. All durations are in days. Required: a) Calculate the duration, standard deviation, and variance for each activity, and present them in tabular form b) Draw the network diagram c) Show all early and late start and finish times for each activity on the network diagram, and calculate and show slacks on the table d) Show the critical path and calculate the duration of the project e) Calculate the standard deviation of the project PROBLEM 6 Given: activity imm. pred. normal normal crash crash dur. cost dur. cost crash cost per day slacks A B D E F G B,D,E 6 9 5 5 4 6 5 600 900 750 400 800 300 250 4 9 3 4. 4 3 5 900 900 950 600 800 600 250 Given: A project consisting of 7 activities, as shown in the table above. The immediate predecessors, the normal durations and costs, as well as the crash durations and costs for each activity are also shown. All durations are in days. Required: a) Draw the network diagram b) Show all early and late start and finish times for each activity on the network diagram, and calculate and show slacks on the table c) Show the critical path and calculate the duration and cost of the project d) What is the final crash duration and cost of this network