=11-30 The Scott Corey accounting firm is installing a new computer system. Several things must be done to make sure the system works properly before all the accounts are put into the new system. The following table provides information about this project. How long will it take to install the system? What is the critical path?

Activity Immediate Predecessors Time

(Weeks)

A — 3 B — 4 C A 6 D B 2 E A 5 F C 2 G D, E 4 H F, G 5