Problem:
The following table represents a project that should be scheduled using PERT.
Required:
Question 1) What is the expected completion time of the project?
| Activity | Immediate Predecessor | Times (Days) | 
| a | m | b | 
| A | None | 1 | 3 | 5 | 
| B | A | 1 | 2 | 3 | 
| C | A, B | 2 | 3 | 4 | 
| D | C | 3 | 4 | 5 | 
a. 10 days
b. 11 days
c. 12 days
d. 9.5 days
Solve the problem and show all work.