Project New Concentration at SSU work breakdown structure has outlined the following activities:

Activity	Predecessor	Normal Time (TE) in Days
A: Obtain Instructor	-	7
B: Locate a Room	A	3
C: Check Costs	-	6
D: Room Availability	C	3
E: Schedule Classes	B, D	2

1. Construct a AON network diagram:
2. Show the ES/EF, LS/LF, and the slack for all activities
3. Show the critical path ( write it out below the network)

For the next set of question s refer to the table below:

Activity	Crash Time (in days)	Crash Cost (total)	Normal Time (TE) in Days	Normal Cost (total)	Crash Cost per day
A: Obtain Instructor	4	$ 800	7	$ 500
B: Locate a Room	2	$ 350	3	$ 200
C: Check Costs	4	$ 900	6	$ 500
D: Room Availability	1	$ 500	3	$ 200
E: Schedule Classes	1	$ 550	2	$ 300

4. Find the crash cost per day for each activity, enter in the table above
5. Which activity should be crashed to meet a project deadline of 10 days (assume partial crashing is allowed for all activities)
6. Find the new cost.