Problem 4: A network for the following training and development project: Activity a: Select personnel b: Invite personnel c: Budget ok? d: Prepare materials c: Engage instructor f: Select date g: Remind personnel h: Start project TE (weeks) Preceding Activities 3 none 5 none 14 5 a a 4 b 7 b 8 d, e 5 gif Find the critical path (which activities represent the critical path?) (25 points) Problem 5: A) Find the schedule (SV) and cost variances (CV) for a project that has an actual cost at month 22 of $540,000, a scheduled cost of $523,000, and an earned value of $535,000. B) Is the calculated SV in this example considered a favorable or unfavorable result? B) Is the calculated CV in this example considered a favorable or an unfavorable result? (15 points) Problem 6: a) A sales project at month 5 had an actual cost of $34,000, a planned cost of $42,000, and a value completed of $39,000. Find the cost and schedule variances and the CPI and SPI. b) Is CPI and SPI results favorable, or not, in this example? (15 points)