PMGT3623 Scheduling - Week 6
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Questions and Answers

What is the focus of Week 06 in PMGT3623?

  • Earned Value Analysis
  • Confidence Analysis of Project Network Diagram (correct)
  • Implementation of Project Network Diagram using Microsoft Project
  • Project Task Definition and Sequencing

    • Which assessment has the highest weight in PMGT3623?

  • Group Assignment Presentation (Part A)
  • Final Exam (correct)
  • Weekly Participation
  • Knowledge Test

    • What topic is NOT covered in Week 06?

  • Confidence calculation for Project Scheduling
  • Probabilistic estimation for Project Scheduling
  • Project Scope Definition (correct)
  • Task Crashing

    • During which week is the Knowledge Test scheduled?

    <p>Week 07</p> Signup and view all the answers

    Which of the following topics will be explored through case studies in Week 06?

    <p>Confidence Analysis</p> Signup and view all the answers

    Which week is dedicated to the Implementation of Project Network Diagram using Microsoft Project?

    <p>Week 08</p> Signup and view all the answers

    What percentage of the overall assessment does the Group Assignment Report Submission (Part B) account for?

    <p>20%</p> Signup and view all the answers

    What is a key aspect of project scheduling discussed in Week 06?

    <p>Probabilistic estimation techniques</p> Signup and view all the answers

    What is the critical path of the project?

    <p>A → F → G → D → J</p> Signup and view all the answers

    How is the expected project completion time calculated?

    <p>By summing the completion times of the critical path activities</p> Signup and view all the answers

    What does the standard deviation of the project represent?

    <p>The level of uncertainty in project completion time</p> Signup and view all the answers

    What is the formula for calculating project variance?

    <p>Var A + Var F + Var G + Var D + Var J</p> Signup and view all the answers

    What is the significance of the Z-score in this context?

    <p>To measure how far an individual completion time is from the mean</p> Signup and view all the answers

    Which variance corresponds to activity C?

    <p>0.11</p> Signup and view all the answers

    What is the probability of project completion in 194 days based on the given mean and standard deviation?

    <p>The Z-score can be calculated to find this probability</p> Signup and view all the answers

    What is the standard deviation of the project completion time?

    <p>9.255</p> Signup and view all the answers

    What is the mean completion time for the project?

    <p>194 days</p> Signup and view all the answers

    What is the mean completion time in days?

    <p>194</p> Signup and view all the answers

    What is the variance of the completion time?

    <p>85.66</p> Signup and view all the answers

    What is the variance of the completion time?

    <p>85.66</p> Signup and view all the answers

    What does a Z-score of 0 represent in this context?

    <p>A completion time of 194 days</p> Signup and view all the answers

    How much of the normal distribution curve is removed from both sides to establish the middle 95%?

    <p>2.5%</p> Signup and view all the answers

    To calculate the Z-score for a completion time of 180 days, what value is used?

    <p>-1.51</p> Signup and view all the answers

    What is the lower boundary of the interval where the project team is 95% confident the completion time lies?

    <p>176 days</p> Signup and view all the answers

    If completion time is 210 days, what is the Z-score?

    <p>1.73</p> Signup and view all the answers

    What is the probability of completion in 180 days?

    <p>1 - P(Z ≤ -1.51)</p> Signup and view all the answers

    What is the standard deviation of the completion time?

    <p>9.255</p> Signup and view all the answers

    What does P(X ≥ 210) represent?

    <p>Probability of completion in more than 210 days</p> Signup and view all the answers

    What is the probability that the completion time lies in the interval [176, 212]?

    <p>0.95</p> Signup and view all the answers

    What is the Z-score formula used in this context?

    <p>$Z = \frac{X - \mu}{\sigma}$</p> Signup and view all the answers

    What is the standard deviation of the completion time?

    <p>9.255</p> Signup and view all the answers

    To calculate P(Z ≥ 1.73), which expression is appropriate?

    <p>1 - P(Z &lt; 1.73)</p> Signup and view all the answers

    What is the purpose of calculating the expected value in PERT analysis?

    <p>To estimate the average duration of an activity</p> Signup and view all the answers

    Which activity has the highest pessimistic duration among the following?

    <p>Activity I</p> Signup and view all the answers

    In the context of PERT, what does the variance measure?

    <p>The spread of possible outcomes for an activity duration</p> Signup and view all the answers

    Which activity comes first in the critical path identified for KLONE Computers?

    <p>Activity A</p> Signup and view all the answers

    What does the term 'critical path' refer to in project management?

    <p>The sequence of activities that determines the shortest project duration</p> Signup and view all the answers

    How is the expected value for Activity A calculated?

    <p>A weighted average of optimistic, most likely, and pessimistic durations</p> Signup and view all the answers

    Which activity's variance is given as 4.00?

    <p>Activity G</p> Signup and view all the answers

    What does the optimistic duration represent in PERT analysis?

    <p>The shortest time to complete an activity, assuming everything goes well</p> Signup and view all the answers

    What is the variance for Activity B as stated in the analysis?

    <p>1.00</p> Signup and view all the answers

    Which activity is primarily related to staff training?

    <p>Activity F</p> Signup and view all the answers

    What is indicated by a high variance in a PERT analysis?

    <p>A high degree of uncertainty in the activity duration</p> Signup and view all the answers

    Which factor is NOT included in the calculations for expected value in PERT?

    <p>Average team performance</p> Signup and view all the answers

    Which activity has both an optimistic and a pessimistic duration of 15 and 33 days, respectively?

    <p>Activity D</p> Signup and view all the answers

    What is the pessimistic duration for Activity E?

    <p>24 days</p> Signup and view all the answers

    Which of the following activities is primarily focused on advertising?

    <p>Activity H</p> Signup and view all the answers

    Study Notes

    PMGT3623 Scheduling - Week 6

    • Topic: Confidence Analysis of Project Network Diagram
    • Covered Topics: Confidence calculation for Project Scheduling, Probabilistic estimation for Project Scheduling, Task Crashing

    Overview of Week 6 Content

    • Two case studies will be explored
    • Case study materials are based on weeks 2-5
    • Case studies will cover: Network Diagram, Probability and Probability Distribution, Normal Distribution, Z-score, Beta Distribution and PERT, Task Crashing

    Probabilistic PERT and Confidence Analysis: KLONE Computers

    • This case study was initially covered in week 2
    • Manufacturing activities include prototype model design, material purchase, prototype model manufacture, design revision, initial production run
    • Training activities include staff training, staff input on prototype models, sales training
    • Advertising activities include pre-production advertising campaign, post-redesign advertising campaign
    • Predecessor relationship table and duration information table are provided for each activity

    Probabilistic PERT and Confidence Analysis: KLONE Computers (cont...) and Facts

    • Critical path can be determined using activities' mean completion times
    • Project mean completion time is determined solely by the activities on the critical path
    • Critical path is A --> F --> G --> D --> J
    • Expected Project Completion Time formula: EA + EF + EG + ED + EJ
    • Project Variance formula: Var(A) + Var(F) + Var(G) + Var(D) + Var(J)
    • Standard Deviation of project formula: √Project Variance

    Probabilistic PERT and Confidence Analysis: KLONE Computers (cont...) calculation, and Probability of completion

    • Calculating expected value and variance for each activity (PERT)
    • Calculating probability of completion in 194 days and in specific number of days
    • Calculating an interval for 95% completion time
      • Mean, Variance, Std
      • Completing the project in a specific number of days with a given percent certainty.

    Task Crashing

    • Project completion times may need shortening due to deadlines, penalty clauses, resource allocation, or promised completion dates
    • Tasks on the critical path are typically prioritized for crashing
    • Crashing a task on the critical path can transform a near-critical path into the new critical path
    • A balanced approach is required between shortening a project duration and its cost
    • Crashing a project needs crash time of each activity and crash cost of each activity
    • Cost per duration calculation: (Crash cost - Normal Cost) / (Normal time - Crash time)

    Case Study - Cables By Us

    • Description of 11 activities and their precedent relationships for a new product
    • A table presenting the activity, description, predecessor, and duration for each activity
    • Network diagram for the Cables By Us project
    • An alternative method to obtain the critical path in a Network Diagram

    Review Questions

    • What is project crashing?
    • When is project crashing applied?
    • How to identify tasks that can be considered for crashing in a Project Network Diagram?
    • Do you need to consider near-critical paths when selecting activities for crashing? Justify your answer with an example.

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    Related Documents

    PMGT3623 Scheduling Lecture Notes PDF

    Description

    This quiz covers the confidence analysis of project network diagrams as part of PMGT3623 Scheduling. It explores probabilistic estimation techniques for scheduling, including task crashing and various distributions. Case studies from previous weeks will also be reviewed to apply the concepts learned.

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