What is the standard deviation of a task with optimistic, most likely, and pessimistic times of 3, 4, and 7 days respectively assuming the estimates were made at the 99% plus level? 1.540 1.212 0.667 Oo oo 1.469 O .444 Question 25 (1 point) Reducing project duration Is always more expensive Involves crashing all activities to their crash point C) can only be done when resources are not constrained Tends to increase network sensitivity should be considered for all projects Question 26 (1 point) Project budgets are developed by time-phasing which of the following? Critical activities The network diagram Resource schedules Work packages Question 27 (1 point) Devon, a project manager, is working on a software development project. He needs more coders to complete the project on time. As a result, he hires people and they are given on-the-job training by their coworkers. However, this significantly reduces the output of the team and leads to a delay in the project. The given scenario exemplifies the mythical man-month effect integration management systems engineering the sleeper effect the boomerang effect Question 28 (1 point) If the optimistic time for an activity is 6 weeks, the pessimistic time is 24 weeks and the most likely time is 12 weeks, then the expected duration is: 24 weeks 13 weeks 7 weeks 22 weeks Question 29 (1 point) Hamid, a project manager, has a workload of 24,000 hours that needs to be completed in 75 workdays. He has a team of 40 people who work for five 8-hour days per week. In those 75 days, 20 people have each requested three days off at different times. In this scenario, the workload is of capacity 80 percent 95 percent 75 percent 150 percent 102 percent