Subject - Project management

Please give me the proper answer.

[1] An organization is carrying out a project. Construct the network activity diagram using the following information: Activity Predecessors Description Contract signing Estimated Duration A None 5 B Questionnaire design A 5 C Target market ID A D Survey sample B, C 13 E Develop presentation B F Analyze results D G Demographic analysis C H Presentation to client E, F, G a. Using AON notation, carryout both a forward and backward pass. What is the estimated total duration for the project? b. c. Identify all paths through the network. d. Which is the critical path? e. Which activities have slack time? f. Identify all burst activities and merge activities. g. If Activity C and G are delayed 9 days each. Would be the impact on the project. [2] What is the time estimate of an activity in which the optimistic time is 5 days, the likely time is 8 days, and the pessimistic time is 14 days? Show your work