Chapter 17 Project Management Quiz Part 3

99. What is the estimated slack time for activity D? A. 0 days B. 30 days C. 40 days D. 50 days E. 100 days 100.What is the probability that the critical path for this project will be completed within 210 days? A. 0.5000 B. 0.8413 C. 0.9544 D. 0.9772 E. 0.9987 A project superintendent is about to begin work on a freeway resurfacing project, which is comprised of the following five activities: 101.What is the estimated expected (mean) duration for Activity E? A. 31 weeks B. 38 weeks C. 39 weeks D. 40 weeks E. 43 weeks 102.What is the estimated standard deviation of the duration for activity E? A. 0 weeks B. 1 week C. 2 weeks D. 3 weeks E. 4 weeks 103.What is the estimated expected (mean) duration for project completion? A. 35 weeks B. 39 weeks C. 50 weeks D. 104 weeks E. 105 weeks 104.What is the estimated slack time for Activity E? A. 0 weeks B. 3 weeks C. 9 weeks D. 11 weeks E. 12 weeks 105.What is the probability that the critical path for this project will be completed within 52 weeks? A. 0.1554 B. 0.3108 C. 0.3466 D. 0.6554 E. 0.8277 The manager of a National Forest is about to undertake a reforestation project in a burned out area. The project will involve the following six activities: 106.What is the estimated expected (mean) duration for activity Y? A. 30 days B. 29 days C. 38 days D. 26 days E. 35 days 107.What is the estimated standard deviation of the duration for activity Z? A. 3 days B. 2 days C. 4 days D. 8 days E. 5 days 108.What is the estimated expected (mean) duration for project completion? A. 135 days B. 145 days C. 170 days D. 180 days E. 255 days 109.What is the estimated slack time for activity W? A. 0 days B. 25 days C. 35 days D. 45 days E. 85 days 110.What is the probability that the critical path for this project will be completed within 200 days? A. 0.8413 B. 0.9544. C. 0.9772 D. 0.9974 E. 0.9987 111.Assume that you are the manager of the project described above. What probability would you assign to a project duration of more than 8.5 weeks? 112.Using the information given, do the following: (i) Draw the precedence network diagram. (ii) Identify the critical path. (iii) Determine expected project duration. 113.Given the network diagram above, determine each of the following: (i) the activities which are on the critical path (ii) the expected project duration (iii) the probability that the project will be completed in 29 weeks or less (Note: the numbers on each node refers to the expected duration and standard deviation in weeks for that activity. E.G., 8,2 indicates an expected duration of eight and a standard deviation of two weeks.) 114.Determine the amount of slack in each of a project's activities (see the list below), and identify those which are on the critical path. 115.Given the network diagram, determine the probability that the project will finish within 19 weeks of its start. Durations on the diagram are in weeks. 116.A project consists of nine major activities, as shown. There are three separate paths in the network: a-c-f, bd-g, and e-h-i. (i) What is expected project duration time? (ii) Determine the probability that the project will take more than 35 weeks to complete. (All durations are in weeks.) 117.Activity E has an optimistic duration of 9 days, a most likely duration of 12 days, and a pessimistic duration of 15 days. Estimate its expected duration and standard deviation. 118.A project has the activities and activity durations (days) listed below. There are two paths: start-A-B-end and start-C-D-finish. Determine the probability that the project will require more than 15 days from start to finish. 119.Activity D has an optimistic duration of 3 days, a pessimistic duration of 9 days, and a most likely duration of 4 days. Determine its expected duration and variance. 120.What is the probability that this project will take more than 10 weeks to complete if the mean and standard deviations activity durations and the network diagram are as shown below: 121.What are the estimated expected (mean) durations (in weeks) for activities A-H? 122.What are the estimated standard deviations (in weeks) of the durations for activities A-H? 123.What is the estimated expected (mean) duration (in weeks) for project completion? 124.What are the estimated slack times (in weeks) for activities A-H? 125.What is the critical path for this project network? 126.What is the estimated standard deviation (in weeks) for the critical path completion time? 127.What is the probability that the critical path for this project will be completed within 75 weeks? 80 weeks? 85 weeks? 90 weeks? 128.Within what amount of time (in weeks) is there a 90% probability that the critical path for this project will be completed? 95%? 99%? 129.What activities make up the critical path? 130.In crashing this project, which activity is the first to be reduced? 131.In crashing this project to 18 weeks, which activities (in order of selection) will be reduced? 132.What is the total cost of reducing this project by two weeks? 133.What is the total cost of reducing the project to 18 weeks? 134.Indirect cost for a project is $2500 per day. Given the following information, determine an optimum crashing plan. What is the total cost for the plan?