Problem: A project has been defined to contain the following list of activities along with their required times for completion. * EL= Early Start, EF-Early Finish, LS=Late Start, LF=Late Finish a. Draw a Network diagram for the activities show all the path calculation (like class activity) b. Calculate Early Start, Early Finish, Late Start and Late Finish for all activities. (Show detail calculation of all activities like class activity including all paths) c. Calculate the earliest expected completion time. d. Show the critical path on network diagram. e. What would happen if activity 6 were revised to take 6 days instead of 1 day, any effect on project duration? f. Construct a Gantt chart for the project defined in the Problem. [This Gantt chart has a July 28, 2022 start date.]