please help solve all parts. thank you!

The following represents a project that should be scheduled using CPM: b. What is the critical path? A.D.G.H A.D.F.H B.E.G.H A.C.F-H c. What is the expected project completion time? Note: Do not round intermediate calculations. Round your answer to 2 decimal places. d. What is the probability of completing this project within 16 days? Note: Use Excel's NORMSDIST() function to find the correct probability for your computed Z-value. Do not round intermediate calculations. Round " z value to 2 decimal places and final answer to 4 decimal places