There are four activities on the critical path. Coincidentally, their standard deviations are all equal to 4. The standard deviation of the critical path is therefore equal to:
2.
4.
8.
16.
64.
There are four activities on the critical path. Coincidentally, their standard deviations are all equal to...
Assume all activities A, B, D are on the critical path. Activity Optimistic Time Most Likely Time Pessimistic Time A 1 4 10 B 4 9 10 C 12 17 28 D 4 5 6 The expected time for activity B is? 18.0 4.5 8.33 6.17 What is the standard deviation for the project? 4.43 2.11 1.67 2.80
5. A project has critical path activities A, B, and C. A is the predecessor of B. B is the predecessor of C. The duration estimate for activity A, B and C is shown in the following table. Fill the table with mean duration, standard deviation, and variance for activities and the whole project (critical path). Determine what is the probability of completing this project within 80 days? (10 points) Activity Optimistic Pessimistic Most likely Mean Standard Variance deviation duration...
A PERT network consists of 60 activities, and 20 of these are critical activities. The length of the critical path is 120 days. The sum of all activity variances is 64; while the sum of the variances along the critical path is 36. The probability that this project can be completed within 108 and 120 days is: More than 0.4675 but less than or equal to 0.4695 More than 0.4695 but less than or equal to 0.4700 More than 0.4700...
11. In CPM/PERT, an activity that is on the critical path A. has equal values for "Latest Start" and "Earliest Start" ( LS = ES ) B. has equal values for "Latest Finish" and "Earliest Finish" ( LF = EF ) C. is used in calculating total project duration D. has slack equal to zero E. all of the above 12. In CPM/PERT, the critical path through the network A. will require the most time of any path B. will...
(50 points) Data regarding the activities for a project are presented below. The times are in weeks The critical path for this project is A-D-H-I-J-K 2. Pessimistic Time Most Likely Time y Optimistic Time 8 16 10 8 10 12 8 14 5 6 2 a. Determine the standard deviation of the critical path. b. Determine the probability of completing the project in 38 weeks or less c What is the probability of completing the project in 32 weeks or...
(3) Determine the critical path and critical time of the network shown below. Use the critical path method (the table of ES, EF, etc.). (3) Determine the critical path and critical time of the network shown below. Use the critical path method (the table of ES, EF, etc.). po Problem . Example a 100 For all starting activities, ES is taken as 0. Activities 1-2, 1-3 gets ES of O. Find EF-ES +time. Activity Time ES E F LS L...
Here are returns and standard deviations for four investments. Standard Deviation Return (%) (%) Treasury bills 6.0 Stock P 9.5 14. Stock Q 16.0 25 Stock R 21.5 27 Calculate the standard deviations of the following portfolios a. 50% in Treasury bills, 50% in stock P. (Enter your answer as a percent rounded to 2 decimal places.) % Standard deviation b. 50% each in Q and R, assuming the shares have: (Do not round intermediate calculations. Enter your answers as...
The critical path for the network activities shown below is __ with duration ___ Activity Duration Immediate Predecessors A 2 - B 4 - C 1 A,B D 6 A,B E 3 B,C,D
Here are returns and standard deviations for four investments. Standard Return (%) Deviation(%) Treasury bills Slock P Stock Q Stock R 4.0 9.5 13.5 21.5 12 25 24 Calculate the standard deviations of the following portfolios a. 50% in Treasury bills, 50% in stock P (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Standard deviation b 50% each in and R, assuming the shares have: (Do not round intermediate calculations. Enter your...
Here are returns and standard deviations for four investments. Standard Return (%) Deviation(%) Treasury bills Slock P Stock Q Stock R 4.0 9.5 13.5 21.5 12 25 24 Calculate the standard deviations of the following portfolios a. 50% in Treasury bills, 50% in stock P (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Standard deviation b 50% each in and R, assuming the shares have: (Do not round intermediate calculations. Enter your...