Two activities on the same critical path are candidates for crashing on a CPM network. Activity details are in the table below. To cut one day from the project's duration,activity. should be crashed first, adding.to project cost.Activity Normal Time Normal Cost Crash Time Crash CostOneTwo8 days10 days$6,000$4,0007 days8 daysOne; $800One: $6,800Two; $500Two; $5,000One or Two should be crashed; $1,300$6,800$5,000

Crashing is a concept that is used to reduce the project duration so that the project can be…

Answered: Two activities on the same critical…

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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29 A project being analyzed by PERT has 60 activities, 13 of which are on the critical path. If the estimated time along the critical path is 214 days with a project variance of 100, what is the probability that the project will take 224 days or more to complete? Select one: a. 0.1587 b. 2.14 c. near zero d. 0.0126 e. 0.8413
Activities, preceding activities, normal and crashed completion times of each of the activities and crashed costs of activities per week of a project are given in the following table. Activity Preceding Activity Crashed Completion time (week) Normal Crashed Cost Completion Time (week) 7 per week A 7 6. 5 $500 $700 $600 $800 $400 C A 4 3 A, C В, D D, E D 9 E 10 9. F 9 II. Find the slack time of each of the activities and the critical activities. Find the minimum possible completion time of the project by considering the crashed completion times and the minimal total cost of crashing the project. iv.
You have signed a contract to build a garage for the Simpsons. You will receive a $500 bonus for completing the project within 30 working days. The contract also contains a penalty clause in which you will lose $100 for each day the project takes longer than 30 working days. Given the information below, complete the forward and backward pass, compute activity slack, and identify the critical activities. Time (days) 4 3 5 2 ID A BC с D E F G H I J K Description Prepare site Pour foundation Erect frame Roof Windows Doors Electrical Rough-in frame Door opener Paint Cleanup The project will take The critical activities are The early start on Activity D is The late start on Activity E is The slack on Activity E is The slack on Activity F is Predecessor None A (BUCCU с с с D, E, F, G F, G H, I J A, B, C, F, H, J, K MAN MA 4 2 5 3 2 4 28 days. 7 days. days. 10 days. days.
Activity Normal_time Crash_time Normal_cost Crash_cost Slack A 31 17 4800 6200 В 14 14 5500 5500 C 34 18 5100 6600 21 17 4500 6800 E 15 15 5300 5300 F 17 17 5300 5300 The table shows normal time, crash time, normal cost, crash cost and slack time of activities in a project. According to this table which activity must be crashed first? Assume there is only one critical path. (Only type the name of the activity, Example: A. @orsdemir. Copyrighted content. Cannot be posted.) 0ㅇ11 2 0
Two activities on the same critical path are candidates for crashing on a CPM network. Activity details are in the table below. To cut one day from the project's duration, activity ________ should be crashed first, adding ________ to project cost.
Consider a project that has been modeled as in the table below. Part a) Draw the PERT/CPM network for this project and determine the project’s expected completion time μP and its critical path. Part b) Suppose the standard deviations of the activity durations are σA = 2, σB = 1, σC = 0, σD = 2, σE = 3, and σF = 0. Then please estimate the standard deviation of the overall project’s standard deviation σP . Part c) Suppose for the standard Normal random variable Z, we know P[−1 ≤ Z ≤ +1] ' 68%, P[−2 ≤ Z ≤ +2] ' 95%, and P[−3 ≤ Z ≤ +3] ' 99.7%. Then, approximately what time T is one for which there is only a less than 2.5% chance for the completion time to beat (be shorter than)? *Please answer a-c and type your work and answers or write them neatly please* Thank you
A T= 4 T= 3 F T= 3 T= 3 D E G T= 1 T= 2 T= 2 The network diagram of a project along with the activity durations (T) is given in the figure. Which activities form one of the critical paths? @orsdemir. Copyrighted Content. Cannot be posted. CDEG O ABF О СВF O CF O None of these
A large Southeast city is requesting federal funding for a park-and-ride project. One of the requirements in the request application is a network plan for the design phase of the project. Sophie Kim, the chief engineer, wants you to develop a project network plan to meet this requirement. She has gathered the activity time estimates and their dependencies shown here. Description Survey Soils report C Traffic design D Lot layout E Approve design Illumination G Drainage H Landscape I Signage J Bid proposal ID A B The project is expected to take The critical path is: Early start for Activity E is: Late finish for Activity F is: Slack for Activity C is: Predecessor None A A A B, C, D E E E E F, G, H, I Time (days) 13 22 21 a 9 74 20 20 22 17 15 12 days. day(s).
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: Activity A B C Normal Time Crash Time Normal (days) (days) Cost 7 6 4 11 2 9 $5,000 $1,400 $4,000 Total Cost with Immediate Crashing Predecessor(s) $5,600 $3,300 $6,400 a) Activity that should be crashed first to reduce the project duration by 1 day is A b) Activity that should be crashed next to reduce the project duration by one additional day is A B A B C ect: 0
The managers at AllBirds have operations in multiple countries, which operate on different financial management systems. This has been increasingly challenging for the company, so the Justin is looking to consolidate and integrate the financial management across all locations into a single software system that can operate across the national boundaries. This is a new, complicated and lengthy project, so Justin has identified a set of activity categories that will need to be carefully managed, as noted in the table. What is the probability that project can be completed two months early?
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, O'O
A project consists of seven activities, lettered A through F below. For each activity, the estimated normal time in number of weeks, crash time, normal cost, crash cost, and its preceding activity are given. Normal Time Crash Time Normal Cost Crash Cost Immediate Activity (weeks) (weeks) (Peso) (Peso) Predecessor(s) A 4 3 2,000 2,600 B 1 2,200 2,800 3 500 500 D 8 4 2,300 2,600 A E 6 900 1,200 В F 3 3,000 4,200 G 4 1,400 2,000 D, E If you wish to reduce the time required to complete this project by one week, which activity should be crashed? O Activity C O Activity D O Activity E O Activity B O Activity A

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