The estimated times and immediate predecessors for the activities in a project at Howard Umrah's retinal scanning company are given in the following table. Assume that the activity times are independent
This exercise contains only parts a, b, c, d, and e.
a) Based on the activity time estimates, the expected times and variance for each of the activities are (round your response to two decimal places):
Expected | ||
---|---|---|
Activity | Time | Warlance |
A | 9.83 | 0.26 |
0 | 10.33 | 6.44 |
C | 10.00 | 1.00 |
0 | 10.00 | 1.78 |
b) The expected completion time of the critical path weeks fround your response to two decimal places
(a)
Expected time | Variance | ||||
Activity | a | m | b | te = (a + 4m + b)/6 | (b - a)2/36 |
A | 8 | 10 | 11 | 9.83 | 0.25 |
B | 4 | 10 | 18 | 10.33 | 5.44 |
C | 7 | 10 | 13 | 10.00 | 1.00 |
D | 6 | 10 | 14 | 10.00 | 1.78 |
(b)
Path | Expected duration |
A-C | 19.83 |
B-D | 20.33 |
The longest and hence the critical path is B-D and the expected duration is 20.33 weeks.
The estimated times and immediate predecessors for the activities in a project
please help!! The estimated times and immediate predecessors for the activities in a project at Howard Umrah's retinal scanning company are given in the following table. Assu that the activity times are independent. Time (weeks) Immediate Time (weeks) Immediate Activity a bPredecessor(s)Activitya bPredecessor(s) 12 10 12 8 17 This exercise contains only parts a, b, c, d, and e a) Based on the activity time estimates, the expected times and variance for each of the activities are (round your response...
HW Score: 62.5%,5 of The estimated times and immediate predecessors for the activities in a projects Howard Urinalarning company are given in the following assume that the activity times are independent Question Help Activity . Immediate Predecessor) А 8 Time (weeksi . Predecessors Activity b 8 10 С 7 19 13 4 10 18 D 6 10 14 This exercise contains only parts , bedande a) Based on the activity time estimate the expected times and variance for each of...
The estimated times and immediate predecessors for the activities in a project at ABC Retinal Scanning Company are given in the following table. Assume that the activity times are independent. Activity Immediate Predecessor a (time weeks) m (time weeks) b (time weeks) A - 9 10 11 B - 4 10 16 C A 9 10 11 D B 5 8 11 Calculate the expected time (mean) and variance for each activity, then answer the following: a. What is the...
The estimated times and immediate predecessors for the activities in a project at Caesar Douglas’s screening company are given in the following table. Assume that the activity times are independent. All times are in weeks. Activity Predecessors Optimistic Time (a) Most Likely Time (m) Pessimistic Time (b) A -- 9 10 11 B -- 4 10 16 C A 9 10 11 D B 5 8 11 What is the critical path based on expected times? You may use any...
Q5: A construction project consists of activities, immediate predecessors (IPA) and duration in weeks are as shown in the following table. Draw the project network diagram, find the critical path and calculate the corresponding project completion time. Also, find the total float as well as the free float for each activity and the non- critical activities. (10 Marks) ТРА Duration (Weeks) Activity A B نما 4 с 14 D A 10 E F A BD BD с F.H 5 4...
Problem 5-10 The following represents a project that should be scheduled using CPM: IMMEDIATE PREDECESSORS TIMES (DAYS) ACTIVITY a m b A — 1 4 7 B — 3 5 10 C A 2 5 8 D A 4 6 11 E B 1 2 3 F C,D 3 5 7 G D,E 1 2 6 H F,G 2 5 6 b. What is the critical path? B-E-G-H A-D-G-H A-D-F-H A-C-F-H c. What is the expected project completion time? (Round...
The following represents a project that should be scheduled using CPM: TIMES (DAYS) ACTIVITY IMMEDIATE PREDECESSORS a m b A — 1 3 5 B — 1 2 3 C A 1 2 3 D A 2 3 4 E B 3 4 11 F C, D 3 4 5 G D, E 1 4 6 H F, G 2 4 5 b. What is the critical path? A-C-F-H A-D-F-H B-E-G-H A-D-G-H c. What is the expected project completion time?...
The following represents a project that should be scheduled using CPM: IMMEDIATE PREDECESSORS TIMES (DAYS) ACTIVITY a m b A — 1 4 7 B — 2 6 13 C A 1 1 4 D A 2 3 4 E B 2 4 6 F C,D 1 5 9 G D,E 1 2 9 H F,G 3 6 9 b. What is the critical path? A-D-G-H B-E-G-H A-D-F-H A-C-F-H c. What is the expected project completion time? (Do not round...
Question 8-10, CHAPTER 18: A home-remodeling project consists of eight activities. The immediate predecessors and activity times in weeks are shown below. Activity Predecessor(s) Normal Time Crash Time Normal Cost $400 Crash Cost $700 1600 2000 800 1100 1000 NNW 600 1200 1450 800 800 500 650 400 600 900 1300 F G H1 1000 650 8. Draw the network for this project. (10 points) 9. Please indicate the Earliest Start, Earliest Finish, Latest Start, and Latest Finish on the...
You are responsible for managing a project with the following activities (all times are given in weeks): Optimistic Most Likely Pessimistic Immediate Time Predecessor(s) Time Activity Time 4 C, D D, E 12 4 8 6 4 What is the expected time of completion of the project? (weeks) (Include 1 decimal place, e.g.,3.1.) abs What is the probability that the project will be completed in 24 weeks or less? (Provide ab 2 decimal places, no 90 sign, e.g., 2.12 for...