Explain what the pessimistic time in the critical path method means .
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Explain what the pessimistic time in the critical path method means .
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- What is the critical path?To design a new app, a project manager has gathered the time information foreach activity as shown in the following table:Activity Predecessors Optimistic Most Likely PessimisticA / 1 4 7B / 2 6 10C B 3 3 9D A 6 13 14E A, C 4 6 14F B 6 8 16G D,E,F 2 5 8Identify the critical path. How much slack time is associated with each noncritical activity?Suppose you wanted to have 99% confidence in the project finishing on time. How manyweeks in total would your project team need to achieve this 99% likelihood?Please help with (b) and (c) as both answers given were incorrect! Please need correct answers. Blue Lagoon is a contractor that installs residential swimming pools, projects that consist of nine major activities. The activities, their immediate predecessors, and the activity time estimates (in days) are shown. Activity Immediate Predecessor Optimistic Most Probable Pessimistic A 3 5 6 B 2 4 6 C A, B 6 7 8 D A, B 8 10 11 E B 2 4 6 F C 1 2 3 G D 6 10 12 H D, F 7 9 11 I E, G, H 3 4 5 (a) What are the critical activities? (Enter your answers as a comma-separated list.) $$A, D, G, I (b) What is the expected time (in days) to complete the project? (Round your answer to two decimal places.) (c) Based only on the critical path, what is the estimated probability that the project can be completed in 28 or fewer days? (Round your answer to four decimal places.)
- The manager of the Oak Hills Swimming Club is planning the club’s swimming team program. The first team practice is scheduled for May 1. The activities, their immediate predecessors, and the activity time estimates (in weeks) are as follows: Activity Optimistic Most Probable Pessimistic Immediate Predecessors A 1 2 3 - B 4 6 8 A C 2 4 6 A D 1 2 3 B, C E 2 3 4 B F 1 2 3 A G 1 2 3 D H 1 2 3 G I 1 1 1 E, H, F A. Draw a project network for this problem. B. Fill in all the blanks in the following table. Note: For variance (σ2) in activity time, keep two decimal places. Activity Expected Time t (weeks) Variance σ2 ES EF LS LF Slack Critical Path? A B C D…find the Critical path, using the available paths technique:What is the significance of identifying the critical path? a) The significance of identifying the critical path is you can focus on the critical activities . b) Place the most responsible people in that activities c) To monitor the critical activities in order to met the predicted earliest completion time. d) None of the choices e) All of the choices
- Use the information provided to determine the critical path and calculate this pathactivity predecessor optimistic time(days) Most likely time(days) Pessimistic time(days) A - 4 8 24 B - 3 10 11 C - 6 12 24 D A,B 9 14 25 Ee B,C 11 16 27 F D,E 13 15 35 G F 5 9 19 identify the paths and show critical pathThe manager of the Oak Hills Swimming Club is planning the club’s swimming team program. The first team practice is scheduled for May 1. The activities, their immediate predecessors, and the activity time estimates (in weeks) are as follows: Activity Optimistic Most Probable Pessimistic Immediate Predecessors A 1 2 3 - B 4 6 8 A C 2 4 6 A D 1 2 3 B, C E 2 3 4 B F 1 2 3 A G 1 2 3 D H 1 2 3 G I 1 1 1 E, H, F a. Draw a project network for this problem. b. Fill in all the blanks in the following table. c. What is the expected time and variance to complete the project? Note: For variance (σ2) in activity time, keep two decimal places. Activity Expected Time t (weeks) Variance σ2 ES EF LS LF Slack Critical Path? A B C…
- The following table shows estimates of activity times (in weeks) for a project: Optimistic Time 5 Activity A B с D EFG 1 4 5 6 2.5 7.5 Most Probable Time 5.5 3 5 5.5 7 b. What is the probability that the project will be completed within 31 weeks? 3 8.5 Suppose that the critical path is A-C-D-E-G. Use Appendix A to answer the questions. Do not round intermediate calculations. Round your answers to three decimal places. a. What is the probability that the project will be completed within 34 weeks? d. What is the probability that the project will be completed in 33 weeks? C. What is the probability that the project will be completed in more than 32 weeks? Pessimistic Time 9 5 6 9 8 3.5 12.5What is a critical path? What is the difference between the critical pathmethod and the critical chain method?Scenario: “I can’t take it!” said Lacey. “This team has created nothing but problems ever since it began.” “That’s not true,” said Tim. “When the project team to select a new software system and create a training plan was first formed, people were very respectful to one another. But ever since they’ve had to make decisions to move forward, there’s been nothing but conflict.” “That’s not really true,” said Lacey. “I mean, there are some team members who seem to have forgotten that the primary focus of the team is to find the best vendor possible and to choose the best possible product. But others seem afraid to raise any objections at all. Take Lisa, from IT. She has greater knowledge than just about anyone on the team. But she avoids conflict at all costs.” “On the other hand, there is Steve, from HR. He knows almost nothing about IT, yet he always has an opinion about everything. He comes in late and leaves early. He makes a few comments and complains about the current system or about…
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