Operations Management In The Supply Chain Decisions And Cases 7th
7th Edition
ISBN: 9781259718779
Author: Roger G Schroeder And Susan Meyer Goldstein
Publisher: McGraw Hill Education
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Textbook Question
Chapter 13, Problem 10DQ
What is the definition of the earliest and latest start times of an activity and the earliest and latest finish times of an activity?
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Given an activity with multiple time estimate values of a-12, m-15, b-20, calculate the expected completion time of the activity
What is the Ealiest and Latest start for Activity I and Latest finish for Activity G?
A project has the activity duration and cost information indicated in the table where all times are in weeks. What is the total cost for completing this project in 50 days?
Activity
Predecessor
Normal Time
Normal Cost
Crash Time
Crash Cost
A
--
8
$12,000
5
$21,000
B
A
12
$20,000
9
$30,000
C
A
15
$24,000
10
$60,000
D
B
3
$10,000
2
$15,000
E
C
9
$17,000
6
$34,000
F
E
7
$5,000
6
$6,000
G
D
8
$14,000
6
$20,000
H
A
12
$22,000
10
$30,000
I
H
6
$50,000
5
$55,000
J
F, G, I
11
$33,000
9
$50,000
Chapter 13 Solutions
Operations Management In The Supply Chain Decisions And Cases 7th
Ch. 13 - How, precisely, does project scheduling differ...Ch. 13 - How would you, after the fact, audit a project to...Ch. 13 - Prob. 3DQCh. 13 - Contrast and compare CPM and PERT as...Ch. 13 - Define the terms critical path, ES, and LF.Ch. 13 - What is the management significance of finding the...Ch. 13 - Prob. 7DQCh. 13 - What is meant by the need to make trade-offs...Ch. 13 - Why are a forward pass and a backward pass needed...Ch. 13 - What is the definition of the earliest and latest...
Ch. 13 - A public accounting firm requires the following...Ch. 13 - The following activities are required in starting...Ch. 13 - A construction project has the following network...Ch. 13 - A plant start-up is based on the following...Ch. 13 - An entrepreneur is starting a new business. The...Ch. 13 - Prob. 6PCh. 13 - Construction of a building is based on the...Ch. 13 - The professor from problem 6 is considering...
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- From the following network diagram, draw the unscaled activity bar type based on (a) early start, (b) late startarrow_forwardThe Peabody Coal Corporation recently completed the final feasibility report for a new general ledger accounting system. It has hired a consulting firm to program and install the new system. The consulting firm is charging $350,000 for the remaining tasks to be performed. These tasks are to be performed over the next 10 months as detailed in the Gantt chart in the diagram. The consulting firm is extremely concerned with the project staying on schedule because it is receiving a flat fee. The release of the final payment is contingent upon the system performing as stated in the contract and upon Peabody receiving appropriate documentation of the system.Requireda. Prepare a PERT diagram and indicate the critical path.b. What happens to the time frame of the implementation of the project if the manufacturer is 4 weeks late shipping the hardware?c. What happens if the data conversion does not go smoothly and takes an additional 3 weeks? d. Who should conduct the postimplementation review?…arrow_forwardA student club plans on holding a campus-wide event at the end of the semester. The activities that have to be completed, duration of each activity, and their sequence are listed in the table below: Duration Immediate Activity (weeks) Predecessor A 2 -- B 3 A C 1 A D 3 B E 4 D,C F 1 E b. What is the earliest start, earliest finish time, latest start, latest finish time for activity E? Earliest start time _______ Earliest finish time _______ Latest start time _________ Latest finish time ________ C What is the slack for Activity C? Slack for activity C ________arrow_forward
- The following represents a project that should be scheduled using CPM a. Complete the table b. Draw the Network Diagram c. What is the critical path? d. What is the expected project completion time?' e. What is the probability of completing this project within 16 days?arrow_forwardA new project is to be completed. The following activities need to be completed in the order shown, where times are in weeks.A new project is to be completed. The following activities need to be completed in the order shown, where times are in weeks. (attached) You must use two decimal places at all times for expected times when they are not integer(a) Draw the activity network for this problem (b) Determine the Expected Times. (c) Determine the activity schedule (ES, EF, LS, and LF) as well as slack.(d) Determine and state the critical path for this project. (e) What are the expected time and the variance of the project? (f) What is the probability that the project is completed in 22 or fewer weeks. (g) What date should be set such that there is a 94% chance of completion within that time?arrow_forwardCalculate expected time, critical path, variance, standard deviation, slack timearrow_forward
- Consider the following activity description with associated cost data shown in Table 1. The cost data represents the total cost and should be considered linear with time. Table 1: Crash Cost Table Activity Immediate Predecessor Normal Duration (days) Normal Cost ($) Crash Duration (days) Crash Cost ($) A --- 5 50 3 150 B --- 4 40 2 200 C B 7 70 5 250 D A, C 2 20 1 50 E A, C 5 125 1 525 F B 10 80 7 290 G D 7 50 3 250 H E, F 6 60 3 180 Reduce the project duration to minimum duration and calculate the cost. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.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_forwardDescribe CPM with Three Activity Time Estimates?arrow_forward
- Evaluate the below statement according to the estimation of activity duration tools, write the number of the correct statement inside the box.arrow_forwardDuring the product discovery, companies first identify list of potential projects, and then decide on which one to work. The final goal of the planing phase is generating a set of tasks that need to be performed and a sequence for them True or False?arrow_forwardSuppose you have a project with a Budget at Completion (BAC) of $250,000 and a projected length of 10 months. After tracking the project for six months, you have collected the information in the table below. a. Complete the table. How do Earned Value SPI (based on $) and Earned Schedule SPI differ? b. Calculate the schedule variances for the project for both Earned Value and Earned Schedule. How do the values differ?arrow_forward
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