5. Consider the following data (ETB and days).a. Draw activity network of the project.b. Crash the activities step by step until all paths are critical.Activity1-2Normal TimeNormal CostCrash TimeCrash Cost20600177201-325200252002-31030084402-4124007003-453004204-51030056004-6560039005-71050058006-784003700

Find the Given details below: Activity Activity Normal Time (NT) (Days) Normal cost (NC) Crash…

Answered: Consider the following data (ETB and…

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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Consider the following project schedule and respond to the requirements that follow (all times are in days). Activity Predecessors a m b A ---- 12 16 20 B ---- 18 28 32 C A 6 9 12 D B 7 16 19 E C, D 4 10 16 F D, E 18 30 36 G F 5 8 17 H F, G 15 25 35 I F, G 22 26 36 J G 15 19 29 K I, H 24 32 34 (a) Construct a project network diagram using the AON technique, i.e. Activity on Node technique (and NOT AOA or activity on arc technique). Be sure to have a start node and a finish node and include the expected activity times for each node. (b) Determine the critical path and expected project completion time using the “critical path method”. Show ES, EF, LS and LF times, as well as slack for all activities. (c) Determine the standard deviation of the project completion time T; what is the probability that the project will take more…
The estimated times and immediate predecessorsfor the activities in a project at George Kyparis’s retinal scan-ning company are given in the following table. Assume thatthe activity times are independent. a) Calculate the expected time and variance for each activity.b) What is the expected completion time of the critical path?What is the expected completion time of the other path inthe network?c) What is the variance of the critical path? What is the vari-ance of the other path in the network?d) If the time to complete path A–C is normally distributed,what is the probability that this path will be finished in22 weeks or less?e) If the time to complete path B–D is normally distributed,what is the probability that this path will be finished in22 weeks or less?f) Explain why the probability that the critical path will befinished in 22 weeks or less is not necessarily the probabil-ity that the project will be finished in 22 weeks or less.
1. Construct the PERT network for this project 2. Compute for the Earliest Start Time and Latest Start Time, Early Finish and Late Finish and slack time for each activity 3. What is the Critical Path? 4. How long can activity C be delayed without delaying the whole project?
Please assist in detailed explanation on the following question in Project Scheduling: 1) - A company decides to plan a project, with activities, precedence and deterministic durations given in the following table: Activity i Duration (days) Immediate Predecessors A 32 none B 21 none C 30 none D 45 A E 26 A, B F 28 C G 20 E, F Questions: 1.1) What method should be used? Using only one pseudo-activity, draw the project network, with arcs labeled by the activity name and duration. 1.2) Compute and display in a table the earliest and latest starting and finishing times, as well as slack, for each activity, and identify the critical path(s). 1.3) Draw a Gantt chart of the schedule, based on earliest starting times 1.4) Which activities must be completed by day 60 to ensure that the project is not delayed?
I need a detailed explanation and assistance to solve the this problem: A company decides to plan a project, with activities, precedences and deterministic durations given in the following table: Activity i Duration (days) Immediate Predecessors A 32 none B 21 none C 30 none D 45 A E 26 A, B F 28 C G 20 E, F a) What method should be used? Using only one pseudo-activity, draw the project network, with arcs labeled by the activity name and duration. b) Compute and display in a table the earliest and latest starting and finishing times, as well as slack, for each activity, and identify the critical path(s). C) Draw a Gantt chart of the schedule, based on earliest starting times d) Which activities must be completed by day 60 to ensure that the project is not delayed?
#3) Consider the following project, all durations are in days. Construct a precedence diagram, find the critical path and which tasks have slack and how much each has. Which tasks would you recommend crashing to reduce the project duration by six days assuming that it costs the same to crash each task and no task by be crashed to more than half its original duration and tasks A and N cannot be crashed at all? Task Predecessors Most Likely Duration A - 8 B A 12 C A 6 D A 12 E B 10 F E 7 G C 18 H C 13 I G 10 J H 13 K D 10 L K 11 M L 7 N F, I, J, M 4 Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
Construct an activity network diagram using Table 3a. Activity A B C D E F G Predecessors - - A A,B D C,E E Expected Time(WKS) 7 9 12 8 9 6 5 Table 3a Activity Durations and relationship Conduct a forward and backwards pass for the activity network diagram that you have constructed and identify the critical path and its duration. Calculate the slack on all of the activities, and proceed to analyze how knowing the slacks can help to manage schedule risk the a project 3b. Assuming that there is the risk of exceeding the project schedule baseline for 7 weeks, critically evaluates the options available that could be used to bring the project on track
Given the following information, a. Draw a project network. b. Complete the forward and backward pass, compute activity slack, and identify the critical path. c. How sensitive is the network schedule? Briefly justify your answer? d. Which activities have free slack? Activity Predecessor Duration (days) A None 10 B None 20 C A 10 D A 30 E B 10 F C 30 G C, D 20 H D, E 10 I F, G, H 20
You are provided with the following information for a project, with activity durations given in weeks: Activity Immediate Optimistic Most Likely Pessimistic Predecessor Time (a) Time (m) Time (b) A ____ 2 3 4 B ____ 2 4 6 C A 1 2 3 D B 3 6 9 E C, D 7 8 9 F D 4 7 10 G E 3 4 5 H E, F…
A project has these activities, precedence relationships, and activity durations: Activity Immediate Predecessor Activity Activity Duration (Week)a * 3b * 4c * 3d c 12e b 5f a 7g e,f 3 a. Draw a CPM network for the project. b. Provide an overview for the project by computing the duration for each path. c. What is the critical path? What is the project's estimated duration?
A project's activities must be completed in the sequence indicated below. Activity Immediately Preceding Activity Duration in Weeks A - 3 B - 20 C - 15 D - 10 E - 5 F A 4 G D 3 H D, E 10 I F 3 J B 10 K G, H 7 L B, I 5 The project ends with the intersection of activities: C, J, K and L 1- Use CPM to construct (Draw) the project Network and find the critical path. 2- How long is the project expected to take
1)Draw the project network. 2)Calculate the early start, early finish, late start, late finish times of the project. 3)Find the critical path of the project. 4)Calculate the time required to complete the project. 5)Calculate the free time in the project network. (Also, show the times you want on the table you will create.)

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