OPERATIONS AND SUPPLY CHAIN MANAGEMENT
9th Edition
ISBN: 9781119448037
Author: Russell
Publisher: WILEY
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Chapter 9, Problem 11P
The management of a factory is going to erect a maintenance building with a connecting electrical generator and water tank. The activities, activity descriptions, and estimated durations are given in the following table:
Construct the network for this project, identify the critical path, and determine the project duration time.
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Construct a Gantt chart and project network for the following set of activities, compute the length of each path in the network, and indicate the critical path:
The activities of a project, their normal and shortest completion times in days, their respective completion costs in euros, and the constraints on their execution sequence are presented in the table below. Questions: A) To build the network that graphically illustrates the project. B) To find the shortest and slowest start and end times. C) Find the critical path and calculate the total cost. D) To consider the case of reducing the total duration of the project by 1 day at the lowest possible cost.
Construct this problem. Draw a network diagram, determine the early start, early finish, late start, late finish, and slack times for each activity (table), determine how long the project will take, and which activities are on the critical path.
Chapter 9 Solutions
OPERATIONS AND SUPPLY CHAIN MANAGEMENT
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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- The project duration in a network model can be determined by the largest value of which variable associated with the critical path?arrow_forward11-16 Jean Walker is making plans for spring break at the beaches in Florida. In applying techniques she learned in her quantitative methods class, she has identified the activities that are necessary to prepare for her trip. The following table lists the activities and the immediate predecessors. Draw the network for this project. 11-17 The following are the activity times for the project in Problem 11-16. Find the earliest, latest, and slack times for each activity. Then find the critical path. These problems go together and are deterministic times.arrow_forwardYou have to manage a project with activities and their respective durations as listed in the table below. Draw a network diagram, Calculate the forward, backward pass, total slack, free slack and identify the critical path.arrow_forward
- A Project is composed of seven activities whose time estimates are listed in the following table. - Calculate the expected time, Construct the network, and compute TE TL for each even. Critical path and its durationarrow_forwardConstruct a network for the project whose activities and predecessor relationship is given below. Determine also the critical Path.arrow_forwardA farm owner is going to erect a maintenance building with a connecting electrical generator and water tank. The activities, activity descriptions, and estimated durations are given in the following table: (Notice that the activities are defined not by node numbers but by activity descriptions. This alternative form of expressing activities and precedence relationships is often used in CPM/PERT.) Construct the network for this project, identify the critical path, and determine the project duration time.arrow_forward
- A marketing firm is planning to conduct a survey of a segment of the potential product audience for one of its customers. The planning process for preparing to conduct the survey consists of six activities, with precedence relationships and activity time estimates as follows: a. Determine all paths through the network from node a to node f and the duration of each. Also indicate the critical path. b. Determine the earliest and latest activity start and finish times. c. Determine the slack for each activity.arrow_forwardA political campaign manager must coordinate several activities to be prepared for an upcoming election. The following table describes the relationships among the activities that need to be completed, as well as the estimated times. Activity Immediate Predecessors Time (Weeks) A - 4 B - 6 C A 3 D A 4 E B, C 8 F B 7 G D,E 2 H F 1 Develop a project network for this problem. Determine the ES, EF, LS, LF, and slack time for each activity. Also determine the total project completion time and the critical path(s).arrow_forwardKen Johnston, the data processing manager for Stanley Morgan Bank, is planning a project to install a new management information system. He is ready to start the project, and wishes to finish in 20 weeks. After identifying the 14 separate activities needed to carry out this project, as well as their precedence relationships and estimated durations (in weeks), Ken has constructed the following project network: 1. Create the network diagram for the project highlighting the critical path. 2. Identify the tasks in the critical path. 3. Find the earliest start and earliest finish, latest start, latest finish, and slack for each activity. Will Ken be able to meet his deadline if no delays occur? 4. Use the information generated to determine the following: a. What would be the duration of the project if Activity-I takes 2 extra weeks? b. What would be the duration of the project if Activity-H takes 2 extra weeks? c. What would be the duration of the project if Activity-J takes 2 extra weeks?arrow_forward
- The Farmer’s American Bank of Leesburg is planning to install a new computerized accounts system. Bank management has determined the activities required to complete the project, the precedence relationships of the activities, and activity time estimates, as shown in the following table: Determine the expected project completion time and variance and determine the probability that the project will be completed in 40 weeks or less.arrow_forward. Given the following network with activity times in weeks, 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. photo attached- Calculate and insert ALL missing Earliest Start or Earliest Finish at each Activity. Calculate and insert ALL missing Latest Start and Latest Finish at each Activity. Calculate missing Slack at Every Activity on the network Diagram. List of all possible paths & Total Slacks from Start to finish for each path. *Which activities are on the critical path? What is the total slack along the critical path.arrow_forwardGiven the following network and activity time estimates, determine: The expected time and variance for each activity Complete the chart showing bout the EF and LFarrow_forward
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