Purchase Solution

Critical and Non-Critical Paths

Not what you're looking for?

Ask Custom Question

The estimated times and immediate predecessors for the activities in a project at Caesar Douglas' retinal scanning company are given in the following table. Assume that the activity times are independent.

(see chart in attached file)

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 in the network?
c) What is the variance of the critical path? What is the variance 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 in 22 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 in 22 weeks or less?
f) Explain why the probability that the critical path will be finished in 22 weeks or less is not necessarily the probability that the project will be finished in 22 weeks or less.

Attachments
Purchase this Solution
Solution Summary

This solution involves step by step calculations regarding critical and non-critical paths.

Purchase this Solution
Free BrainMass Quizzes
Situational Leadership

This quiz will help you better understand Situational Leadership and its theories.

Paradigms and Frameworks of Management Research

This quiz evaluates your understanding of the paradigm-based and epistimological frameworks of research. It is intended for advanced students.

Organizational Leadership Quiz

This quiz prepares a person to do well when it comes to studying organizational leadership in their studies.

Operations Management

This quiz tests a student's knowledge about Operations Management

Accounting: Statement of Cash flows

This quiz tests your knowledge of the components of the statements of cash flows and the methods used to determine cash flows.

View More Free Quizzes
Related BrainMass Solutions

  • PERT/CPM Computation

    The critical paths are activities A,C,D, and F. These activities must never be delayed. ? The non-critical paths are activities B and E. Please see the detailed and step-by-step instruction in the attached file.

  • critical path and Gantt charts

    Non-critical path steps can be delayed without effecting the entire project. You can show the critical path by making it darker and thicker than the other paths. The expert calculates the critical path on Gantt charts.

  • Listing critical paths and durations

    Given activities and durations, the question will ask you to lost the critical paths and non-critical activities.

  • Estimating Project Completion Time

    Note that this will provide us with approximate probability because there can be non-critical paths with high activity variances that might have the lower probability of completion time as compared to the critical path.

  • some questions about critical paths.

    117267 some questions about critical paths. Does every network have exactly one critical path? On a specific project, can there be multiple critical paths, all exactly the same duration?

  • Critical Care Hospital: Critical Path Analysis Method

    Critical and non-critical paths are shown in the network. The delays in the activities involved in the non-critical paths would not affect the entire project.

  • Network Diagram (AON)

    The solution includes the network diagram (AON) and provides a detailed solution determining the paths, showing the critical paths, and slack time (see attachment).

  • Calculating Critical Paths and Slack Time

    459905 Calculating critical paths and slack time 2) Cosider the network pictured below with task durations in days as follows: A=2, B= 6, C=5, D=2, E=6, and F=1 a) Enumerate all paths and their duration through this network b) Calculate the critical

  • Project Evaluation Review Technique / Critical Path Method : Network, Critical Path and Analysis of Crash Activity

    paths are A-E-F and B-F.

View More Related Solutions