Operations and Supply Chain Management 9th edition
9th Edition
ISBN: 9781119320975
Author: Roberta S. Russell, Bernard W. Taylor III
Publisher: WILEY
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Textbook Question
Chapter 9, Problem 6P
Given the following network with activity times in months, determine the earliest start and finish times, latest start and finish times, and slack for each activity. Indicate the critical path and the project duration.
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Given the following network, with activity times in weeks, determine the earliest and latest activity times and the slack for each activity. Indicate the critical path and the project duration:
Given the following network, with activity times in months, determine the earliest and latest activity times and slack for each activity. Indicate the critical path and the project duration.
6. Given the following network, with activity times in months, determine the earliest and latest activ-
ity times and slack for each activity. Indicate the critical path and the project duration.
Chapter 9 Solutions
Operations and Supply Chain Management 9th edition
Ch. 9 - Why is CPM/PERT a popular and widely applied...Ch. 9 - What is the purpose of a CPM/PERT network?Ch. 9 - Why are dummy activities used in a CPM/PERT...Ch. 9 - What is the critical path, and what is its...Ch. 9 - What is slack, and how is it computed?Ch. 9 - How are the mean activity times and activity...Ch. 9 - How is total project variance determined in...Ch. 9 - What is the purpose of project crashing analysis?Ch. 9 - Describe the process of manually crashing a...Ch. 9 - Which method for determining activity time...
Ch. 9 - Explain how a Gantt chart differs from a CPM/PERT...Ch. 9 - Discuss the relationship of direct and indirect...Ch. 9 - Describe the limitations and disadvantages of...Ch. 9 - Describe the difference between activity-on-node...Ch. 9 - Identify and briefly describe the major elements...Ch. 9 - Select an everyday project you are familiar with...Ch. 9 - Prepare a WBS for a spaghetti with meatballs...Ch. 9 - Construct a Gantt chart for the project described...Ch. 9 - Construct a Gantt chart for the project described...Ch. 9 - Use the project activities that follow to...Ch. 9 - Construct a network from the information in the...Ch. 9 - For the network in Problem 9.4, determine the...Ch. 9 - Given the following network with activity times in...Ch. 9 - Given the following network with activity times in...Ch. 9 - A marketing firm is planning to conduct a survey...Ch. 9 - In one of the little-known battles of the Civil...Ch. 9 - A group of developers is building a new shopping...Ch. 9 - The management of a factory is going to erect a...Ch. 9 - Given the following network and probabilistic...Ch. 9 - The Farmers American Bank of Leesburg is planning...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- Determine critical path for the project by calculating the slack for each activityarrow_forwardPrepare a plan for a small project of moderate complexity (at least 12 activities, with some interdependencies between activities). Your plan should identify the activity by their beginning and ending nodes and by short, descriptive titles. Estimate the times to complete the activities. Prepare a PERT/CPM network. Determine critical path and the expected time for completing the project (Activity Analysis and Event Analysis). Choose a project of some personal interest and knowledge (e.g. building a house, selling a house, political campaign etc.) Your project will be judged by how completely it identifies all activities, the reasonableness of your time estimates and the correctness of your analysis. UPLOAD YOUR ANSWER HERE AS IMAGE/PDF.arrow_forwardGiven the following AOA network diagram and activity duration information, determine the Earliest Start, Earliest Finish, Latest Start and Latest Finish, and Slack for each activity. Also, indicate the critical path and the project duration. B 3 E D Activity A B с Ꭰ E F G J K L P Q R 5 R K 7 Duration (Months) 8 10 8 4 8 7 1 12 247∞∞ in 8 18 8 15 Q₂ L 9arrow_forward
- A group of developers is building a new shopping center.A consultant for the developers has constructed theCPM/PERT network below and assigned activity times inweeks. Determine the earliest start and finish times, lateststart and finish times, activity slack, critical path, and duration for the project.arrow_forwardUsing the activity table below, construct a CPM/PERT network noting the activity numbers and durations. Identify the critical path through the network, determine the project completion time, and determine the earliest and latest end dates for each node. Activity Predecessor Time (months) 1 - 10 2 - 1 3 - 6 4 2 3 5 1,3,4 5 6 3 8 7 5,6 2arrow_forwardThe project detailed in the table below is contracted for delivery in 11 weeks, with a penalty clause requiring the contractor to pay a penalty of $2000 for each week late. The project must therefore be expedited. The possible reductions and associated costs are shown in the table. Times in the table are given in weeks. Only activity 4 can be expedited two weeks. The other activities can be expedited one week. (a) Determine the critical path(s), the expected duration of the project, and the slack time for each activity (indicate value on network)? What is the total project cost with penalty included? (b) How could the project time be reduced to 11 weeks and what is the total project cost? Activity Immediate predecessor Normal time Expedited time Normal cost ($) Expedited cost ($) 1 - 4 3 5,000 6,900 2 - 2 2 3,000 3,000 3 1 5 4 7,000 9,200 4 2 6 4 9,000 11,000 5 2 5 4 6,000 7,800…arrow_forward
- Given in the table below is the project information consisting of the activities, predecessors, and duration: Activity Predecessor Duration A В A 12 A 20 15 E 15 F D, E 10 F 18 F 12 G,H 8 Draw a network diagram that includes the project information above.arrow_forwardA project has seven (7) main activities labelled A through G as shown in the below table which also shows their estimated duration times ( in weeks) and immediate predecessors. Activity a b Immediate Remarks m predeccessor A a = optimistic time 1 3 3 4 m = most likely time C 4 5 A b = pessimistic time D 8 9. 10 В E 2 8 C,D F 4 В G 1 3 E (a) Develop a project network for this problem. (b) Determine the expected duration and variance for each activity. (c) Determine the ES, EF, LS, LF, and slack time for each activity. (d) Determine the total project completion time and critical path(s). (e) Determine probability of the project completion more than 20 weeks 2. B.arrow_forwardQUESTION 7 The Stone River Textile Mill was inspected by OSHA and found to be in violation of a number of safety regulations. The OSHA inspectors ordered the mill to alter some existing machinery to make it safer (add safety guards, etc.); purchase some new machinery to replace older, dangerous machinery; and relocate some machinery to make safer passages and unobstructed entrances and exits. OSHA gave the mill only 35 weeks to make the changes; if the changes were not made by then, the mill would be fined $300,000. The mill determined the activities in a CPM/PERT network that would have to be completed and then estimated the indicated activity times, as shown in the following Table 6: Table 6 Activity Description A B с D E F G H I J K Activity Description Order new machinery Plan new physical layout Determine safety changes in existing machinery Receive equipment Hire new employees Make plant alterations Make changes in existing machinery Train new employees Install new machinery…arrow_forward
- Given in the table below is the project information consisting of the activities, predecessors, and duration:arrow_forwardThe following estimates of activity times (in days) are available for a small project: Activity Optimistic Most Probable Pessimistic A 4 5.0 6 B 8 9.0 10 C 7 7.5 11 D 7 9.0 10 E 6 7.0 9 F 5 6.0 7 Compute the expected activity completion times and the variance for each activity. An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path.arrow_forwardDraw the project network chart. Show ES, EF, LS, LF, and Slack on the project activity node for all activitiesarrow_forward
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