Estimates Predecessors

A 2 days None

B 5 days A

C 1 day B

D 2 days A

E 3 days B & D

F 12 days E & C

Draw a network diagram.

Identify the critical path, earliest start and finish and slack for each task.

Using MS Excel, produce a Gantt chart for this project.

What would happen if a new estimate for task D increases its expected duration from two days to six days? Would the project take longer? Would anything else change?