Conduct a PERT analysis on the following project

PERT Exercise 1: Complete on Your Own Conduct a PERT Analysis on the following project and answer the questions below. Predecessor ID lo | | 7 None A 5 4 A B 17 25 20 IC A 25 40 30 D A 5 7 5 E 75 Description Survey Soils Report Traffic design Lot Layout Approve Design Illumination Drainage Landscape Signing Bid Proposal 80 90 B,C,D F E 12 15 15 G 20 30 E 45 H E 20 25 50 1 18 20 22 E J 8 10 12 F,G,H,1 Answer the following questions about the project. What is the project duration based on te? What is the chance that the project will be completed in the duration of our current critical path? . What time should the project manager estimate if he or she wants to be 95% sure that the project will be completed within that time period? . What is the buffer time that should be added to a project's critical tasks in order to be 95% sure that the project completes on time