Problem 9-24 (Algorithmic) 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 Time (weeks) Cost ($1000s) Normal Crash Activity Description Predecessor(s) Normal Crash A Plan needs 12 8 30 110 B A 7 6 120 135 Order equipment Install equipment B 10 7 100 160 D . 7 6 40 50 Set up training lab Conduct training course E D 9 8 50 62.5 F Test system C, E 3 3 60 b. Develop an activity schedule. If your answer is zero, enter "o". Earliest Latest Earliest Latest Critical Activity Start Start Finish Finish Slack Activity . B D E F C. What are the critical activities, and what is the expected project completion time? Critical Path: Expected project completion time = weeks. d. Assume that the company wants to complete the project in six months or 26 weeks. What crashing decisions do you recommend to meet the desired completion time at the least possible cost? Work through the network and attempt to make the crashing decisions by inspection. Crash Activities Number of Weeks Cost ($1000s) A 4 B 1 1 D 1 E 0