Activity Normal_time Crash_time Normal_cost Crash_cost SlackA311748006200В141455005500C341851006600211745006800E151553005300F171753005300The 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 ofthe activity, Example: A. @orsdemir. Copyrighted content. Cannot be posted.)0ㅇ11 2 0

Given- Activity Name Normal Time Crash Time Normal Cost Crash Cost SLACK A 31 17 4800 6200 0…

Answered: Activity Normal_time Crash_time…

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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Project Management i 42:20 C aw The network diagram and task times for a project are shown below. Task A₁ A₂ A₁ A₂ Late finish time A3 Duration (days) 66314 A3 A₁ A5 What is the late finish time for activity A₁? A4 4 days Saved As
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 2 1 2,200 2,800 3 500 500 D 8. 4 2,300 2,600 A E 6 3 900 1,200 F 3 2 3,000 4,200 G 4 2 1,400 2,000 D, E What is the maximum time that can be crashed? O Not in the choices Seven weeks Five weeks O Four weeks O Six weeks
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 с Normal Time Crash Time Normal Cost (days) 7 4 11 (days) 6 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
Event Predecessor Event Time A - 6 B - 8 C A;B 12 D C 4 E C 6 F D;E 15 G E 12 H F;G 8 Specify : a) The project age b) Critical event and critical time
Example: - 02) Activities of a project with estimates of activity times are listed below. Activity Immediate Activity time estimates (days) Predecessors Optimistic Most Pessimistic Probable A 12 15 36 В 3 4.5 15 C A 9 12 A 12 33 E A 6. 9 12 F 4.5 6. 7.5 G D 4.5 13.5 H В ,Е 7.5 10.5 22.5 I H 4.5 6. 7.5 J F, G, I 3 6. 9 Construct the PERT net work for the above data. What are the critical path activities and the expected project completion time? Find the probability of completing the before (a) 45 days (b) 60 days. If the project manager wants 0.99 probability of completing the project on a certain date. How far ahead of the scheduled date should be begin working on the project.
Using Microsoft Excel TM prepare a Gantt Chart for the following project. Activity Predecessor(s) Duration (Months) 1. Proposal 2. Client meeting 3. Develop airframe spec. 4. Develop engine spec. 5. Client meeting 6. Design fuselage 7. Design wings 8. Design engine 9. Client meeting 10. Build fuselage 11. Build wings 12. Build engines 13. Integrate airframe 14. Client meeting 15. Test engines 16. Integrate engines 17. Test flight 18. Client meeting 4 1 1 2 3 2 2 3,4 1 5 8 13 6,7.8 1 16 10 12 10,11,12 5 13 1 12 8 4 16 10 17 1 N567 2.
Example 2.39 Table 2.119 provides normal and crash times as well as normal and crash costs for the activities of a project. Table 2.119 Project activity details Activity Normal Time (Weeks) Normal Cost (Lakhs) Crash Time (Weeks) 1-2 3 5 2-3 4 8 2-4 3 4 2-5 8 S 3-6 4 3 4-6 6 2 5-7 5 10 6-7 3 7 1 3 2 7 2 4 4 1 Crash Cost (Lakhs) 9 14 6 6 5 3 14 10 Project Network Analysis-1 | 141 (a) Draw the network and find the critical path. (b) Using the above information, crash or shorten the activities step by step until the shortest duration is reached. MMM, VI Sem, Mumbai Univ, 2006
Development of Version 2.0 of a particular accounting software product is being considered by Jose Noguera's technology firm in Baton Rouge. The activities necessary for the completion of this project are listed in the following table: Activity A BCDEFG Normal Time Crash Time Normal (weeks) Cost $2,100 Total Cost with Immediate Crashing Predecessor(s) 4 $2,800 $2,200 $2,900 $750 $750 $2,500 $2,820 $1,000 $1,300 $3,200 $4,700 $1,400 $1,900 2 3 8 6 3 4 (weeks) 3 1 34 4 322 a) Based on the given information regarding the activities for the project, the project length = b) The total cost required for completing this project on normal time = $ weeks. c) For reducing the duration of the project by one week, the activity that should be crashed first is activity The cost of the project based on the first activity selected for crashing will increase by $ d) The maximum weeks by which the project can be reduced by crashing = Total cost of crashing the project to minimum (or maximum weeks…
I need help with part d. Bragg's Bakery is building a new automated bakery in downtown Sandusky. Here are the activities that need to be completed to get the new bakery built and the equipment installed. ACTIVITY PREDECESSOR NORMAL TIME (WEEKS) CRASH TIME (WEEKS) EXPEDITING COST per WEEK A — 9 6 $ 3,000 B A 8 5 3,500 C A 15 10 4,000 D B, C 5 3 2,000 E C 10 6 2,500 F D, E 2 1 5,000 b-1. Identify the critical path. A-C-E-F A-B-D-F A-C-D-F b-2. What is the normal project length? 36 weeks c. What is the project length if all activities are crashed to their minimum? 23 weeks d. Bragg's loses $3,500 in profit per week for every week the bakery is not completed. How many weeks will the project take if we are willing to pay crashing cost as long as it is less than $3,500 for each week crashed? I need help with this question. Thank you!
4 01:34:47 The network diagram and task times for a project are shown below. A₁ A2 Late start time A3 Task A₁ A₂ A3 A₁ A5 What is the late start time for activity A3 ? Duration (days) 7 6644 A4 days A5
Activity Preceded By ABCDEFG А ww ww A B,C D E BC F. G Expected Time Regular Crash 6 days 2 day 12 6 4 10 8 C 18 6 2 6 6 2 8 4 Direct Cost Regular Crash $2000 $3800 2000 10000 4000 4600 3900 5000 7600 16000 19600 2000 4000 1000 3400 2800 Requested: (a) Construct a network including the Early and Late Start and Finish times. (b) Identify the normal Critical Path(s) and the normal expected completion time (c) Can the project be crashed to last 18 days? Which activities should be crashed and at what additional cost?
In the project considered here, activity crashing can take place over a wide range of reduction times. Activity Immediate Normal Time Cost per Day to Lower Time Limit Predecessor (days) crash (days) A None 3 P450,000 1 B None 4 300,000 C A 200,000 D E 2 100,000 1 E А, В 500,000 F С, D 4 600,000 3 a. Draw an AON network diagram for this project. What is the critical path? How long will the project take if no crashing takes place? b. Determine the least-cost way to crash activities in order to complete the project in 11 days; in 10 days; in 9 days; in 8 days. Draw your results on a time-cost trade-off matrix. c. Suppose the due date for the project is five days, and a penalty of P500,000 per day is assessed for each day late. What is the optimal number of days to crash the project? Why? 3.

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