Calculate the following and create a PERT Analysis

Number	Activity	Predecessor	Best-Case	Likely	Worst-Case	Duration	Var
1	Assign Project Manager	Start
2	Define Project Goals and Objectives	1
3	Retrieve Client Approval and Determine Business Need	1
4	Needs Analysis and Define Scope	2
5	Create Project Plan and Budget	2
6	Define Roles and Responsibilities	3
7	Process Improvements	3
8	Establish Team Expectations	4, 5
9	Plan roll-out and Pilot	4, 5
10	Document Lessons Learned	5, 6