Earned value analysis has provided information for a project that was recently closed out: CPI = 0.7, SPI = 1.0. What does this mean? Select one: O a. The project's deliverables have all been completed and the project came in on schedule but over budget ob. The project's deliverables have all been completed and the project came in ahead of schedule but on budget Oc. The project's deliverables have all been completed and the project came in behind schedule but on budget Od. The project has been cancelled while it was being executed and at that time it was behind schedule but on budget Activity A is worth $100, is finished, and cost $150 to complete. Activity B is worth $500, is 25% finished, and has cost $400 so far. Activity C is worth $500, is 75% finished, and has cost $100 so far. Assuming current variances are typical of future variances, what is the estimated cost at completion for this project? Select one: O a. $1200 O b. $1375 O c. $880 O d. $750 A worker begins to assemble a newly designed packaging machine. The labor hours required for making the second and third units are 28.6 and 27.9 hours respectively. Calculate the labor hours required to manufacture the 50th unit. Select one: O a. 25.5 O b. 26.1 O c. 29.3 O d. 23.8 What is the cost performance index if the earned value is 120 and the actual cost is 100? Select one: O a 2 O b. 1.2 O c. -20 O d. 0.83