Task Label Task Description Estimated Duration $($days$)$ Immediate Predecessors

A Pilot system $17$ None

B Gather sales data $21$ A

C Identify software $6$ B

D Validate data $11$ B

E Input RootVendor data $5$ C$,$ D

F Train vendors $7$ E Using this table, create a critical path for each task. Each task needs an ES$,$ EF$,$ LS$,$ LF$,$ and Slack