Office Automation Inc., has developed a proposal for introducing a new computerized office system that will improve word processing and interoffice communications for a particular company. Contained in the proposal is a list of activities that must be accomplished in order to complete the new office system project. Information about the activities is shown in the table below. Times are in weeks.

Data for Office Automation, Inc. NormaCrash Time Norma Crash Cost Immediate Predecessors Activity Description Cost ($) 30 120 100 40 50 60 Time 70 150 160 50 75 10 Plan needs Order equipment Install equipment Set up training lab Training course Testing system 10 6 10 C,E a) Show the network for the project. b) Develop an activity schedule for the project using normal times c) What are the critical path activities and what is the expected project completion time