Q$2($PROJECT MANAGEMENT$).$ Use the following project data:

Times $($Days$)$

Task Predecessor Optimistic Most Likely Pessimistic

A $--234$

B A $123$

C A $4512$

D A $3411$

E B $135$

F C $123$

G D $189$

H E$,$F $246$

I H $2412$

J G $345$

K I,J $578$

part A Construct the network diagram; include the expected completion times