2-(25) consider the following table(information)

Find activity time for each activity (te)

Find the variance of each activity

Find the critical path

Find the probability of completing the project in 21 periods.

Solution:

Act. ID	Description	Predecessor	Optm. (a)	Most Likely (m)	Pess. (b)	Act time te	Variance [(b-a)/6]2	Critical
1	Design Package	None	1	2	3
2	Design Product	1	2	3	4
3	Build Package	1	3	4	5
4	Secure Patent	2	4	5	6
5	Build Product	2	5	6	7
6	Paint	3,4,5	6	7	8
7	Test Market	6	2	2	2