Three activities are candidates for crashing on a project network for a large computer installation (all are, of course, critical). Activity details are in the following table:Total CostNormal Time Crash TimeNormalwithImmediateActivity(days)(days)Crashing$6,500$3,300$6,000CostPredecessor(s)7$6,000B$1,400$4,000A11a) Activity that should be crashed first to reduce the project duration by 1 day isb) Activity that should be crashed next to reduce the project duration by one additional day isc) Total cost of crashing the project by 2 days = $. (Enter your response as an integer.)

Activity Normal Time (days) Crash Time (days) Normal Cost Total Cost with Crashing…

Answered: Three activities are candidates for…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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The project manager of a task force planning the construction of a domed stadium had hopedto be able to complete construction prior to the start of the next college football season. Afterreviewing construction time estimates, it now appears that a certain amount of crashing will beneeded to ensure project completion before the season opener. Given the following time and costestimates, determine a minimum-cost crashing schedule that will shave five weeks off the projectlength. Note: No activity can be crashed more than two weeks.CRASHING COSTS ($000)Activity Immediate Predecessor Normal Time (weeks) First Week Second WeekA — 12 $15 $20B A 14 10 10C — 10 5 5D C 17 20 21E C 18 16 18F C 12 12 15G D 15 24 24H E 8 — —I F 7 30 —J I 12 25 25K B 9 10 10M G 3 — —N H 11 40 —P H, J 8 20 20End K, M, N, P
A potential situation that could cause a negative or positive impact to the project is known as a(n): A) Activity B) Problem C) Risk D) Issue
The client of a project has requested the project team to crash 8 hours of time. The table below provides the necessary information about the possible project crashing. (a) What is the crash cost for 8 hours of time-savings? (b) Assume the team calls the client and asks for a project extension, reducing the amount of time they need to crash. The project team has a $20 crash budget. Is the budget sufficient to crash 4 hours of time? Activity Normal Duration (hours) Normal Cost ($) Crash Duration (hours) Crash Cost (S) Immediate Predecessors A 2 10 2 0 None B 3 15 2 23 A C 5 25 4 30 B D 3 20 1 24 C E 6 30 4 45 C F 1 5 1 0 E G 7 35 6 50 F H 10 50 7 80 D, G
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
Problem 2: Chicago Project You are asked to manage an upcoming project for a client based in Chicago. Your supervisor, Susan, asked you to determine if the project will be completed in 2 months (60 days). Susan sent you the estimated time durations (in days) for the project. The information is given below: Compute the expected time and variance for each activity. What is the critical path and the expected duration of the project? What is the probability that the project will take longer than 58 days to complete?
Management Firm is a consulting company that specializes in the development of decision support systems. Time (Weeks) Activity Description ImmediatePredecessor Optimistic Most Probable Pessimistic A Report generation 2 8 12 B Web scraping 4 9 11 C Testing A, B 1 1 1 (A) Based solely on the critical path, estimate the probability that the project will be complete within 11 weeks. (Round your answer to four decimal places.) (b) Using all paths through the project network, estimate the probability that the project will be complete within 11 weeks. (Round your answer to four decimal places.)
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.
Consider the following network for conducting a two-week (10 working days) computer training class: please refer to the picture I uploaded Find the crash cost per day. Which activities should be crashed to meet a project deadline of 10 days with a minimum cost? Assume partial crashing. Find the new cost. Is partial crashing an appropriate assumption in this kind of project?
A group of developers is building a new shopping center. A consultant for the developers has developedthe following table of activities, durations and predecessors. Determine the earliest start times andfinish times, latest start and finish times, activity slack, critical path and duration for the project. Thereis a Bonus for finishing the project at 90% of the projected date. The bonus for early completion is$50,000. Which activities should be crashed, if the cost for 1 week reduction, for any activity, is $3500per week, and what is the total cost of crashing? And, Net Bonus, if any.
I also know answer is d, but please explain each and every option why other option are incorrect too. Which of the following statements regarding PERT analysis is true? Each activity has two estimates of its duration. Project variance is the sum of all activity variances. Project standard deviation is the sum of all critical activity standard deviations. Only critical activities contribute to the project variance. none of these is true.
Using the information given in Chapter 19 Computational Exercise Questions 19.2-36 on page 596 in the paper textbook, and your responses to the questions in the Online Discussion this week, develop the following for Mary's wedding project: A risk management plan that includes at least one major risk, one medium risk and one acceptable risk, complete with mitigation plans. An expense budget for the activity elements included in the plan. Show details of Labor, Material and facilities rental.
Your company has just received an order from a good customer for a specially designed electric motor. The contract states that, starting on the 13th day from now, your firm will experience a penalty of $100 per day until the job is completed. Indirect project costs amount to $200 per day. The data on direct costs and activity precedence relationships are given in Table. Electric Motor Project Data Activity Normal Time(days) Normal Cost ($) Crash Time (days) Crash Cost ($) ImmediatePredecessor(s) A B C D E F G H 4 7 5 6 3 11 4 3 1000 1400 2000 1200 900 2500 800 300 3 4 4 5 2 6 3 1 1300 1200 2700 1400 1100 3750 1450 500 None None None A B C D,E F,G a. Draw the project network diagram.b. What completion date would you recommend?

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