Project Management: The Managerial Process (Mcgraw-hill Series Operations and Decision Sciences)
7th Edition
ISBN: 9781259666094
Author: Erik W. Larson, Clifford F. Gray
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6, Problem 22E
Given the network below, compute the early, late, and slack time for each activity. Clearly identify the critical path. 
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Given the following network, compute the early, late, and slack time for each activity. Clearly identify the critical path.
You may need to use the appropriate technology to answer this question.
A project consists of five activities as shown in the following table.
Activity
Floor sanding
Floor buffing
Paint mixing
Wall painting
Ceiling painting
Start
Optimistic Time (hr) Most Probable Time (hr)
Start
Floor
Buffing
Paint
Mixing
Naturally, paint mixing precedes the painting activities. Also,
(a) Construct the PERT/CPM network for this problem.
Floor
Sanding
4
Paint
Mixing
4
0.5
3
3
Paint
Wall
Paint
Ceiling
Paint
Ceiling
Paint
Wall
5
5
1
4
7.5
Floor
Sanding
Pessimistic Time (hr)
Floor
Buffing
Finish
6
Finish
6
ceiling painting and floor sanding must be dor
1.5
11
9
i
Start
Start
prior to floor buffing.
Floor
Sanding
Paint
Mixing
Floor
Buffing
Paint
Mixing
Paint
Ceiling
Paint
Wall
Paint
Wall
Paint
Ceiling
Floor
Buffing
Floor
Sanding
Finish
Finish
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 6 Solutions
Project Management: The Managerial Process (Mcgraw-hill Series Operations and Decision Sciences)
Ch. 6 - How does the WBS differ from the project network?Ch. 6 - How are WBS and project networks linked?Ch. 6 - Why bother creating a WBS? Why not go straight to...Ch. 6 - Why is slack important to the project manager?Ch. 6 - What is the difference between free slack and...Ch. 6 - Why are lags used in developing project networks?Ch. 6 - What is a hammock activity, and when is it used?Ch. 6 - Here is a partial work breakdown structure for a...Ch. 6 - Draw a project network from the following...Ch. 6 - Draw a project network from the following...
Ch. 6 - Draw a project network from the following...Ch. 6 - Draw a project network from the following...Ch. 6 - From the following information, develop an AON...Ch. 6 - The project information for the custom order...Ch. 6 - You have signed a contract to build a garage for...Ch. 6 - You are creating a customer database for the...Ch. 6 - K. Nelson, project manager of Print Software....Ch. 6 - A large Southeast city is requesting federal...Ch. 6 - You are creating a customer database for the...Ch. 6 - You are completing a group term paper. Given the...Ch. 6 - You are managing a product upgrade project for...Ch. 6 - You are creating a database for the Oklahoma City...Ch. 6 - The planning department of an electronics firm has...Ch. 6 - Using Microsoft Project, set up the network and...Ch. 6 - The optical disk project team has started...Ch. 6 - From the following information, compute the early,...Ch. 6 - Given the following information, compute the...Ch. 6 - Given the information in the following lag...Ch. 6 - Given the network below, compute the early, late,...Ch. 6 - The CyClon project team has started gathering...Ch. 6 - Advantage Energy Technology Data Center...Ch. 6 - Advantage Energy Technology Data Center...Ch. 6 - Advantage Energy Technology Data Center...Ch. 6 - The GE Company is preparing a bid to build the new...Ch. 6 - The GE Company is preparing a bid to build the new...Ch. 6 - The G&E Company is preparing a bid to build the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, management and related others by exploring similar questions and additional content below.Similar questions
- 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_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_forwardThe following is the data available for a project: Activity Predecessor Expected Duration (Days) A - 12 B A 9 C B,E 3 D - 10 E D 6 F E 3 G - 2 H G 9 I E,H 2 Expected duration for the completion of the project. Calculate earliest and latest start and finish times for each activity. Draw the network diagram for the project and determine the critical patharrow_forward
- A project consists of the activities in the following list. Times are given in weeks. Activity Preceding Time A -- 8 B -- 4 C A, B 7 D A, B 3 E C, D 5 F C, D 6 G E, F 4 Draw the project network diagram. Calculate each activity's ES, EF, LS, LF, and Slack using the project activity nodes on the project network diagram. What is the project completion time? Identify the critical patharrow_forwardThe following is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations and what activities each must precede: Duration (weeks) Precedes B, C F E F This exercise contains only parts b, c, and d. b) The activities on the critical path are c) The total project completion time for Rafay Ishfaq's software firm is d) Determine the slack time for each of the activities. (Enter your responses as whole numbers.) Activity A (start) BOE C F (end) weeks. (Enter your response as a whole number.) Activity A B ош 2 9 2 6 3 F Slack Time (weeks) What is the total slack for the non critical path(s) in the project? week(s) (Enter your response as a whole number.)arrow_forwardDraw the network and identify the critical path of following data and total slack time in the network. Also calculate the earliest-latest starting and finishing times for each activity and re-plan the above mentioned network to complete the project in less time.arrow_forward
- Based on the table above, draw a complete Activity-in-the-Box network diagram using the ID's to represent each activity.arrow_forwardThe table below show a set of activities of an IS project,its expected completion time (ET) and preceding activities. Activity Preceding Activity Expected Time (ET) A - 7 B A 9 C A,B 5 D C 17 E C 12 F C 7 G D,E,F 10 H D,G 7 Draw a network diagram for the IS project shown above.,and calculate its earliest completion time (TE), latest completion time (TL) and slack time (ST). If the activity E took 16weeks instead of 12weeks to complete ,what impact will it have on the project duration?arrow_forwardUsing the data given below, prepare an activity schedule (table)showing the ES, EF, LS, LF, and slack for each activity. (Table header- activity name, EST, EFT, LST.LFT, Slack)arrow_forward
- The Industrial and Systems Engineering Department at Sun University is moving from its old building to a new building. The move must be completed within the 14-day period between semesters. A list of tasks (activities) has been prepared. The activities and precedence requirements are presented in the table below. Three time estimates (in days) are given for each activity: optimistic time, most likely time, and pessimistic time. (a) Perform a forward pass and backward pass through the network to determine the critical path, and the expected duration of the project (b) What completion time should the department specify in its proposal in order to be 85% sure that it will complete the project on time? Activity Activity description Immediate predecessor Optimistic time (days) Most likely time (days) Pessimistic time (days) 1 Initiate move - 0 0 0 2 Prepare new building space 1 2 4 6 3 Pack faculty files and books 1 3 4 5 4…arrow_forwardDraw the project network diagram using activity on node (AON) for the following schedule. Also determine and provide the critical path and duration for the critical path.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_forward
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