Prepare a resource-leveled schedule

Question

A consulting firm is planning a reengineering project for a client. The following ac­tivities and time estimates have been identified:

Activity Time,Days Immediate Predecessor
A 1 -
B 2 -
C 2 -
D 2 A,B
E 4 A,C
F 1 C
G 4 D
H 8 G,E,F

a. Draw a project network diagram.

b. Calculate the scheduling times and total slack for each activity.

c. List the critical path activities and project duration.

d. Assuming that one worker is required for each activity, prepare a resource-leveled schedule. What is the maximum number of workers required to finish the project on time?