What is the total cost of reducing this project by two weeks? O a. 44 b. 76 C. 48 d. 50 e. 34
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![A project has three critical paths: A-B-C-D-E, A-G-H-E,
and A-F-I-E. Crashing costs (in thousands, per week)
for each activity is listed below:
Activity
Crashing
Crashing
Crashing
1st time
2nd time
3rd time
37
1
27
4.
C
26
2
8
39
4.
F
28
29
2
G
27
25
H.
8.
3
What is the total cost of reducing this project by two
weeks?
а. 44
b. 76
C. 48
d. 50
e. 34
2]
4,
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- An IT company must complete a project with the following tasks listed A to G. ACTIVITY NORMAL DURATION (DAYS) CRASHED DURATION (DAYS) NORMAL COST ($) CRASHED COST ($) A 7 5 500 900 B 4 2 400 600 C 5 5 500 500 D 6 4 800 1000 E 7 4 700 1000 F 5 2 800 1400 G 6 4 800 1600 The following are all the paths in the project from start to end and the durations of each: A-B-E-G : 24 days A-C-E-G : 25 days A-C-F-G : 23 days A-D-F-G : 24 days Develop a crashing schedule to show which activities should be crashed to crash the project by 4 days and the lowest cost of doing so.A project has 7 activities P, Q, R, S, T, U, and V. Three time estimates (optimistic, most-likely, pessimistic) are used for each activity. Write down your answers to all parts of the question in the box given below. Give your answer to 3 decimal places. (Note (a) has of 2 parts and (b) has of 3 parts) For activity Q, these time estimates are as follows: optimistic time = 9, most-likely time = 14, pessimistic time = 20. Write down the average activity time for Q the variance of activity time for Q. The critical path of this project has a mean project time of 44 days and a standard deviation of 5 days. Assume project completion time is normally distributed. Find the probability that the project will be completed in 47 days. Find the probability that the project will take more than 40 days. We want to set a deadline for this project completion. If the probability of meeting this set deadline is 0.88, what will be the deadline for this project.The North Carolina Department of Transportation is undertaking a construction project to widen a large section of interstate highway near Charlotte, NC, which includes the construction of a number of new bridges, interchanges, and overpasses. The first step in the project is the appointment of a project manager and the development of a project team, some of which will be departmental employees and others will be private consultants and operatives. The team of a project of this size also requires a large support staff with varying technical skills. Once the team is selected and the staff is in place the first task is to select a primary contractor to manage and oversee the actual construction. The following table gives the standard activities required for the planning and scheduling of this process. Activity Description Predecessor Time (weeks) Optimistic a Most Likely m Pessimistic b a b c d e f g h i j k L M Select project manager Develop a team recruitment…
- Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times: Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s)A 6 - E 5 BB 8 - F 6 BC 2 A G 9 C, ED 3 A H 7 D , F Dave's earilest start (ES) and earliest finish (EF) are: Activity ES EF A 0 6 B 0 ? C D E F G HA project is scheduled to complete in six months duration. There are two activities in the project. The actual cost of Activity 1 is SAR 300,000 and that of Activity 2 is SAR 200,000. The planned value of these activities is SAR 280,000 and 150,000 respectively. On reviewing, the current project status is Activity 1 is 100% completed and Activity 2 is only 75% completed. (i) Perform the earned value calculations of the above project scenario and fill the given table. Activity Month 1 Earned Value Planned Value Actual Cost Cost Variance Scheduled Variance Cost performance Index Schedule performance Index (ii) What do you infer about the project schedule and cost based on your calculations?Which activities are noncritical or can be delayed? (You must also complete the table below) Note: to means optimistic time , tm means most likely time , tp pessimistic time, and te means expected activity time estimate.
- A project consists of three tasks: A, B, and C. Task A is known to take five days forsure. Tasks B and C are each dependent on A. B takes five days. C takes seven dayswith a probability of 0.5 and three days with a probability of 0.5. What is the expectedcompletion time of the project?a. 8 daysb. 10 daysc. 11 daysd. 12 daysAn IT project manager of ABC Company has developed an activity list for the purpose oftracking employees’ daily activities on the project. The project’s schedule is considered to be ofhigh risk due to the possibility of sabotage by some of the employees. In addition, the IT projectmanager has gathered time information for each activity, as shown in the table below. Considerthe following project’s tasks and their identified best, likely, and worst case estimates of taskduration. Assume the organization computes PERT weight average based on the standardformula.Activity Optimistic MostlikelyPessimisticA 5 5 25B 3 5 8C 7 5 8D 4 4 5E 10 19 34F 3 14 18G 6 16 20H 32 44 65I 12 17 25J 2 8 18The dependencies between the 10 activities listed in the table above are as follows: The project starts with two activities—A, and B—which can be done concurrently. When activity A is finished, activity C can start When activity B is finished, activities D and E can start When both activities C and D are…There are four critical paths in a network. A-B-C-D-E, A-F-G-E, A-H-J-K-L-E and A-S-T-E. Each activity in this network can be crashed by 100 hours. The maximum possible reduction in the project duration will be: a. Insufficient information b. 1300 hours c. 500 hours d. 400 hours e. 600 hour
- In making a forward pass through a network, three activities are immediate predecessors for activity T and one following activity. What is the late start time for activity T? Group of answer choices: - the LS of the following activity plus the activity time of T - the smallest EF for the three activities that are immediate predecessors for activity T - the LF of the following activity minus the activity time of T - the LS of the following activity minus the activity time of T - the largest EF for the three activities that are immediate predecessors for activity TYou have collected the data for a Time-Cost CPM Scheduling model analysis. The time is in days and the project "direct costs" are given below. Immediate Normal Crash Normal Crash Activity Predecessor Time Time Cost (Direct) Cost (Direct) A None 3 2 $300 $408 B A 3 3 $100 $100 C A 1 1 $200 $200 D B and C 3 2 $400 $550 E D 2 1 $500 $900 F E 3 3 $200 $200 G F 2 2 $200 $200 The indirect costs for the project are determined on a daily duration basis. If the project lasts 16 days the total indirect costs are $408, 15 days they will be $350, 14 days they will be $200, and 13 days they will be $100. If you crash this project by one day what is the total (i.e., direct and indirect) project cost?A project has the activity duration and cost information indicated in the table where all times are in weeks. What is the total cost for completing this project in 50 days? Activity Predecessor Normal Time Normal Cost Crash Time Crash Cost A -- 8 $12,000 5 $21,000 B A 12 $20,000 9 $30,000 C A 15 $24,000 10 $60,000 D B 3 $10,000 2 $15,000 E C 9 $17,000 6 $34,000 F E 7 $5,000 6 $6,000 G D 8 $14,000 6 $20,000 H A 12 $22,000 10 $30,000 I H 6 $50,000 5 $55,000 J F, G, I 11 $33,000 9 $50,000
