Hello, I really need help understanding how to do this.

Your University is holding a fund-raiser and will be hiring a band to entertain spectators. You have been selected to serve as the event project manager and have created a Work Breakdown Structure and duration estimates for the activities involved in site preparation for the event. Construct a network activity diagram based on the following information:

Activity	Description	Predecessors	Duration (DAYS)
A	Site Selection	None	6
B	Buy Concessions	None	5
C	Rent Facilities	None	4
D	Build Stands	A	6
E	Generator& Wiring	A	4
F	Security	B, C	9
G	Lighting Installation	E,F	4
H	Sound System	D,G	4
I	Stage Construction	H	5
J	Tear Down	H	6
K	Close Project	I,J	2

1. Conduct a forward and backward pass using Activity on the Node (AON)

2. Identify the total duration of the project.

3. Identify the Critical Path