(Ch 12) Assume that a task in a project has the following three time estimates:
Optimistic completion time = 10 weeks
Most likely completion time = 14 weeks
Pessimistic completion time = 21 weeks
Compute the estimated task completion time for this task.
Optimistic completion time (To) = 10 weeks
Most likely completion time (Tm) = 14 weeks
Pessimistic completion time (Tp) = 21 weeks
Estimated task completion time is given below-
Hence the estimated task completion time for this task is 14.5 weeks
(Ch 12) Assume that a task in a project has the following three time estimates: Optimistic...
Project task E has the following estimates: (1) optimistic time - 10 days, (2) Pessimistic time - 20 days, and (3) Most likely time - 12 Days. The standard deviation for time using the beta statistical distribution is ________ days. 2.33 1.5 02 1.67
The table below gives the optimistic, most-likely, and pessimistic time estimates (in weeks) for all activities in a project. (Statistical tables are available in appendix I) Activ Predecessor totm t 2.0 5.0 8.0 3.0 4.0 5.0 4.06.08.0 5.0 6.0 7.0 3.0 6.0 9.0 D, E (i) Calculate the estimated time and variance for each task (ii) Draw the AON diagram and identify the critical path. (iii) What is the expected critical path duration and estimate a standard deviation for the...
Given an activity's optimistic, most likely, and pessimistic time estimates of 6, 12, and 18 days respectively, compute the PERT variance for this activity
1- Consider the table shown below: Task Predecessor Time (weeks) Expected time Variance of time Optimistic Most likely Pessimistic A - 1 3 5 B A 2 6 10 C B 4 7 10 D B, C 1 2 9 E D 2 4 6 F D,E 4 7 10 G F 1 3 5 a) Calculate expected time and variance for each task. b) Find the critical path and expected project competition time? c) What is the probability of...
The following table shows estimates of activity times (weeks) for a project: Activity Optimistic Time Most Probable Time Pessimistic Time A 3 4.5 9 B 1.5 2 2.5 C 5 6 7 D 4 4.5 8 E 5 6 7 F 1 2.5 7 G 7 9 11 Suppose that the critical path is A-B-D-F-G. Use Appendix A to answer the questions. Do not round intermediate calculations. Round your answers to three decimal places. What is the probability that the...
Given an activity's optimistic, most likely, and pessimistic time estimates of 5, 7, and 15 days respectively, compute the PERT expected activity time (t) and variance of activity completion time (Var) for this activity. 1. t = 8, and Var = 2.78 2. t = 7, and Var = 1.78 3. t = 14, and Var = 2.78 4. t = 8, and Var = 1.78
PERT Analysis: The following represents a project with four activities. All times are in weeks. Activity Immediate Predecessor Optimistic Time Most Likely Time Pessimistic Time A - 3 8 14 B - 8 8 8 C A 6 9 18 D B 6 11 17 According to the data in the above Table: What is the critical path? What is the minimum expected completion time for the project? According to the above Table, there are four activities in the project....
4. A project has the following tasks and duration estimates given. These three tasks are done in succession on a project. Task Optimistic Estimate Most Likely Estimate Pessimistic Estimate Alpha 30 days 40 days 50 days Beta 20 days 25 days 28 days Charlie 4 days 10 days 12 days Delta 25 days 30 days 50 days a. What is the expected duration for the project? (3 points) b. What is the variance for the project? (3 points) . c....
Given an activity's optimistic, most likely, and pessimistic time estimates of 5, 10, and 15 days respectively, compute the PERT variance for this activity
An activity on a PERT network has these time estimates: optimistic = 2, most likely = 3, and pessimistic = 10. What is its expected activity time and variance? A. 5; 1.78 B. 4; 1.78 C. 5; 10.67 D. 4; 10.67 E. None of the above.