Consider the following project network and activity times (in days).EStartFinishDFGActivity | A B C D EF GTime356.2The crashing data for this project are as follows:Time (days)Cost ($)ActivityNormalCrashNormalCrash8001,2002,000A21,400В211,90032,8001,5001,8002,300E642,8001,0001,000F21600G21500a. Find the critical path and the expected project completion time.b. What is the total project cost using the normal times?Assume that management desires a 12-day project completion time.c. Formulate a linear programming model that can be used to assist with the crashingdecisions.d. What activities should be crashed?e. What is the total project cost for the 12-day completion time?2.

Answered: A E Start Finish B D F G Activity | A А…

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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What is the minimum cost of crashing the following project that James Walters manages at Athabasca University by 4 days Activity Normal Time (days) Crash Time (days) Normal Cost Crash Cost Immediate Predecessor(s) A 5 4 $800 $1,000 — B 8 6 $200 $600 — C 5 4 $600 $650 — D 7 4 $750 $1,500 A E 6 4 $1,200 $1,650 C A. By how many days should each activity be crashed to reduce the project completion time by 4 days? Fill in the table below. (Enter your responses as whole numbers.) Activity Each Activity Should be Reduced BY (days) A 1 B 0 C 1 D 3 E 2 B. The total cost of crashing the project by 4 days is _____ (Enter your response as a whole number.) Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You…
Net Present Value Perform a financial analysis for a project using the Net Present Value method. Assume the projected costs and benefits for this project are spread over four years as follows: Estimated costs are $200,000 in Year 1 and $30,000 each year in Years 2, 3, and 4. Estimated benefits are $0 in Year 1 and $100,000 each year in Years 2, 3, and 4. (1) Use a 9 percent discount rate and round the discount factors to two decimal places. Calculate the NPV and the year in which payback occurs.(2) Explain in plain language what the NPV means in this context.
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The Advanced Tech Company has a project to design an integrated information data base for a major bank. Data for the project are given in the following table. Indirect project costs amount to $250 per day. The company will incur a $200 per day penalty for each day the project lasts beyond day 12. Activity Normal Time (days) Normal Cost ($) Crash Time (days) Crash Cost ($) Immediate Predecessor(s) A 5 800 4 1,000 − B 5 1,100 2 2,900 − C 2 600 1 900 A, B D 3 1,200 2 2,000 B E 3 1,500 2 1,700 C, D F 2 1,300 1 1,400 E G 3 900 3 900 E H 5 500 2 800 G a. What is the project's duration if only normal times are used? The project duration is nothing day(s). (Enter your response as an integer.)…
The project manager is tasked with the responsibility of balancing project constraints to increase the probability of project success, and ensure that the project meets its objectives. In this discussion forum: Identify and explain at least five (5) project constraints, and explain the working of the triple constraint model of project management.
What is 1 Project scope, 2 stakeholders, 3goals, budget, 4plan, 5deliverables 6duration. 7constraints, 8risks, 9 Gantt chart. for project Metro Transit App This app will help its users to buy their tickets online based on their destinations. It will help the users to organize their daily trips and which bus or train they should take, and day and time of each trip leg. The detailed requirements are not fully specified at this point of time.
The sensitivity of two parameters (P and n) for one project is evaluated by graphing the AW values versus percentage variation from the most likelyestimates. The curve for n has a slope very close to zero, while the P curve has a significant negative slope. One good conclusion from the graph is that:a. both PW and AW values are more sensitive to variations in P than n.b. the project should be rejected, since AW values vary with P and n.c. a better estimate of P needs to be made.d. the ROR is equally sensitive for both parameters.
Company X is planning to run a project that requires an initial investment of RM 80,000.Operation cost is estimated at RM 20,000 per year starting one year from the start of theproject until its project life. Starting second year onwards, the operation cost is expectedto increase by RM 5,000 from previous year. The project will start to generate its annualincome of RM 70,000 on the second year until fifth year. The salvage value of the projectis RM 50,000 and its project life is five years. a) Construct the cash flow diagram to summarize the above transactions. b) Determine the expected project value at the end of five years. Assume the growth rateis 12%.
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Uncertainties and risks are always associated with large real world projects and may obstacle and threaten projects in some ways. Failure in accurately identifying the project risks increases the total cost and may cause social and environmental damages as well as casualties during project execution. The aim of this study is to develop a mathematical programming model for selecting risk response strategies for construction projects. All risk response strategies for the analysed project have been identified and a mathematical model is presented based on project iron triangle; time, cost and quality to obtain the optimal risk response strategy for the construction project.Uncertainties and risks are the inherent characteristics of the real world construction projects. The project risk management deals with identifying and controlling the risks before they occur. Various risks happen in project execution phase which may reduce the performance efficiency and even cause the project failure.…

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