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 19E
From the following information, compute the early, late, and slack times for each activity. Identify the critical path.
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Students have asked these similar questions
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…
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.
The 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.)
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
- REQUIRED: Prepare the PERT Network for the US Tea project What is the critical path and its expected time in weeks? What is the shortest path and its slack time in weeks?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_forwardhow to draw the path and how to compute the critical path and slack time? Please provide step by step solution.arrow_forward
- Discuss uncertain activity times in project scheduling.arrow_forwardCalculate, ES, EF, LS and LF for each activity, and highlight the critical path indicating the length of this project.arrow_forwardFour Squares Productions, a firm hired to coordinate the release of the movie Pirates of the Caribbean: On Stranger Tides (starring Johnny Depp), identified 16 activities to be completed before the release of the film. Determine how many weeks in advance of the film release should Four Squares have started its marketing campaign and identify the activities that need to be prioritised to deliver the project within the allocated time? The tasks in weeks are provided in the table below (round off your answers to the nearest whole number) ACTIVITY OPTIMISTIC TIME MOST LIKELY TIME 2 3.5 12 5 4 7 4 7.7 10 4 A B C DE TI F G H | J K L M N P IMMEDIATE PREDECESSORS A B C C C D E F, G, H J, K, L I, M N 1 3 10 4 2 6 2 5 9.9 2 2 2 5 1 5 LO 5 4 4 6 1.1 7 7 PESSIMISTIC TIME 4 4 13 7 5 8 5.5 9 12 5 6 6 6.5 2 8 9arrow_forward
- The 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_forwardWhat precisely does the critical route approach achieve, however, and why is it such a vital part of project scheduling?arrow_forwardYou 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 Finisharrow_forward
- The 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_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_forwardsniparrow_forward
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