24. Office Automation, Inc., developed a proposal for introducing a new computerized office system that will standardize the electronic archiving of invoices for a particular company. Contained in the proposal is a list of activities that must be accomplished to complete the new office system project. Use the following relevant information about the activities: Immediate Predecessor Time (weeks) Normal Crash Cost ($1000s) Normal Crash Activity Description Plan needs Order equipment Install equipment Set up training lab Conduct training course Test system 30 120 100 70 150 160 40 50 CE a. Develop a project network. b. Develop an activity schedule