By Jay Heizer Barry Render Operations Management, Sustainability and Supply Chain Management (11th) [Paperback]
7th Edition
ISBN: 9781269261630
Author: Jay Heizer
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 10DQ
Describe how expected activity times and variances can be computed in a PERT network.
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Describe how expected activity times and variances can be computed in a PERT network.
Draw the PDM network diagram for the following project, calculate the earliest and latest starting and finishing times for all activities, and hence calculate the total float, free float for each activity.
Activity
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REQUIRED (hrs/WEEK)
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If there is a limit of 15 workers per week, smooth the workers loading using ES and LS histogram. Based on the proposed scheduling, plot the equipment loading histogram for the project.
Independently of the above resource leveling, schedule the…
Draw the Network Diagram, determine the critical path and draw Gantt chart for project scheduling for the following two problems
Problem1.
Activity Predeccsor Duration(hours) Lag Time(hours)
A - 2 0
B A 4 5
C B 3 3
D B 5 0
E D, C 2 0
Problem 2.
Activity Predeccsor Duration(months)
A - 2
B A 1
C A 3
D B, C 1
E D 2
F D…
Chapter 3 Solutions
By Jay Heizer Barry Render Operations Management, Sustainability and Supply Chain Management (11th) [Paperback]
Ch. 3 - Give an example of a situation in which project...Ch. 3 - Explain the purpose of project organization.Ch. 3 - What are the three phases involved in the...Ch. 3 - What are some of the questions that can be...Ch. 3 - Define work breakdown structure. How is it used?Ch. 3 - What is the use of Gantt charts in project...Ch. 3 - What is the difference between an...Ch. 3 - What is the significance of the critical path?Ch. 3 - What would a project manager have to do to crash...Ch. 3 - Describe how expected activity times and variances...
Ch. 3 - Define earliest start, earliest Finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - What are dummy activities? Why are they used in...Ch. 3 - What are the three time estimates used with PERT?Ch. 3 - Would a project manager ever consider crashing a...Ch. 3 - How is the variance of the total project computed...Ch. 3 - Describe the meaning of slack, and discuss how it...Ch. 3 - How can we determine the probability that a...Ch. 3 - Name some of the widely used project management...Ch. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - 3.2 Robert Day has decided to run for a seat as...Ch. 3 - Draw the activity-on-node (AON) project network...Ch. 3 - Given the activities whose sequence is described...Ch. 3 - 3.5 Using AOA, diagram the network described below...Ch. 3 - Stephen Hall is developing a program in supply...Ch. 3 - Task time estimates for the modification of an...Ch. 3 - 3.8 The City Commission of Nashville has decided...Ch. 3 - Refer to the table in Problem 3.8. a. Draw the AON...Ch. 3 - The activities needed to build a prototype laser...Ch. 3 - Dave Fletcher (see Problem 3.10) was able to...Ch. 3 - The activities described by the following table...Ch. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The following is a table of activities associated...Ch. 3 - Assume that the activities in Problem 3.15 have...Ch. 3 - Bill Fennema, president of Fennema Hospitality,...Ch. 3 - What is the minimum cost of crashing the following...Ch. 3 - Three activities are candidates for crashing on a...Ch. 3 - Development of Version 2.0 of a particular...Ch. 3 - The estimated times and immediate predecessors for...Ch. 3 - Rich Cole Control Devices, Inc., produces...Ch. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Using PERT, Adam Munson was able to determine that...Ch. 3 - Clark Products makes pizza ovens for commercial...Ch. 3 - The Tesla 6 is a new custom-designed sports car....Ch. 3 - TABLE 3.6 Southwestern University Project 1....Ch. 3 - TABLE 3.6 Southwestern University Project 2 What...Ch. 3 - TABLE 3.6 Southwestern University Project 3. If it...Ch. 3 - Project Management at Arnold Palmer Hospital Video...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...
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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
- Based on the table above, draw a complete Activity-in-the-Box network diagram using the ID's to represent each activity.arrow_forwardFor the activity times and network model below, What is the expected completion time? ________ What is the critical path? ____________ Activity Time A 3 B 2 C 2 D 4 E 3 F 2arrow_forward1. For the following Activity table draw the CPM diagram Using Activity On Node. Show the ES, LS, EF, LF and Slack for each activity on the diagram. Indicate the Critical path. Activity Time (Days) Predecessor A 4 ------------ B 7 A C 8 A D 2…arrow_forward
- From the following network diagram, draw the unscaled activity bar type based on (a) early start, (b) late startarrow_forwardWhat is the activity-on-node (AON) project network?arrow_forwardDevelop the appropriate PERT network using an Activity-on-Arrow Diagram. Be sure to indicate the Activity ID and duration on the arrows properly. Number the nodes properly.arrow_forward
- The conditions and pert times for constructing a network diagram are given below.-Creation conditions:(0-1) It is the initial activity.(1-2) and (1-3) Activities begin together.It follows activity (2-4) (1-2), activity (3-4) (1-3), and ends together.( 4-5 ) It is the last activity. a-Create the network diagram.b-Calculate the critical path and show it on the diagram.c- If the expiry time is extended by 15 days, how much will the probability of expiry increase?arrow_forwardMake a list of the tasks that is necessary to build a duplex house (around 3000 sft) for you. Develop a table showing each task, its duration, preceding event(s), and expected duration. Develop a Network diagram for these tasks. Highlight the critical path on your Network diagram and find out slack of all activities.arrow_forwardExplain what are service projects in project scheduling ?arrow_forward
- 1. Draw the network diagram and determine the critical path for the project below:arrow_forwardA local political campaign must coordinate a number of necessary activities to be prepared for an upcoming election. The following table describes the relationships between these activities that need to be completed, as well as their completion times. Activity Immediate Predecessors Time (weeks) A - 3 B - 6 C A 2 D A 3 E B, C 7 F B 6 G D, E 1 H F 1 Use excel to answer the following; a) Develop a project network for this problem. b) Determine the EST, EFT, LST, LFT, and slack for each activity. c) What is the critical path and project completion time?arrow_forwardRoss Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Draw the AON network and answer the questions that follow. a) What is the expected (estimated) time for activity C?b) What is the variance for activity C?c) Based on the calculation of estimated times, what is the criticalpath?d) What is the estimated time of the critical path?e) What is the activity variance along the critical path?f) What is the probability of completion of the project before week 36?arrow_forward
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