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) Activity Description Predecessor(s) Normal Crash Normal Crash A Plan needs 11 8 30 90 Order equipment Co 120 150 Install equipment 10 100 160 Set up training lab 40 50 nmon Conduct training course 10 50 75 W Test system C, E 60 a. Which project network is correct? (ii) B C B c Start A F Finish Start A F Finish D E D E (iii) (iv) B C B C Start A F Finish Start A F Finish D E | D EEarliest Latest Earliest Latest Critical Activity Start Start Finish Finish Slack Activity A B C D E T1 c. What are the critical activities, and what is the expected project completion time?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 3 B N m e. Develop an activity schedule for the crashed project. If your answer is zero, enter "0". Earliest Latest Earliest Latest Critical Activity Start Start Finish Finish Slack Activity A CO O m f. What added project cost is required to meet the six-month completion time? Total added cost due to crashing $