1. Task time estimates for the modification of an assembly line at Jim Goodales Carbondale, Illinois, factory are as follows:

Activity	Time (in hours)	Immediate Predecessors
A	6	--
B	7	--
C	5	A
D	8	B, C
E	5	B, C
F	8	D
G	4	E, F

1. Draw the project network using AON.
2. Identify the critical path.
3. What is the expected project length?
4. Create a gantt chart for the project

2.Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times:

Activity	Time (weeks)	Immediate Predecessor	ES	EF	LS	LF	Slack
A	6	--
B	5	--
C	3	A
D	4	A
E	4	B
F	7	B
G	6	C, E
H	5	D, F

3. Development of Version 2.0 of a particular accounting software product is being considered by Jose Nogueras technology firm in Baton Rouge. The activities necessary for the completion of this project are listed in the following table:

Activity	Normal Time (weeks)	Crash Time (weeks)	Normal Cost	Crash Cost	Immediate Predecessor(s)
A	5	4	$2,000	$2,700	--
B	2	1	2,200	2,600	--
C	3	3	500	500	--
D	7	3	2,300	2,700	A
E	6	3	900	1,350	B
F	4	3	3,000	3,600	C
G	4	2	1,400	1,800	D, E

1. What is the length of project on normal time?
2. What is the total cost required for completing this project on normal time?
3. If you wish to reduce the time required to complete this project by 1 week, which activity should be crashed, and how much will this increase the total cost?
4. What is the maximum time that can be crashed? How much would costs increase?