OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
7th Edition
ISBN: 9780077835439
Author: Roger G Schroeder, M. Johnny Rungtusanatham, Susan Meyer Goldstein
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 13, Problem 5P
An entrepreneur is starting a new business. The activities and times required are given below:
- a. Find the critical path and the project completion time.
- b. What are the ES, LS, EF, and LF for each activity?
- c. How much slack is there in activity D?
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Students have asked these similar questions
a. Develop an AON network for this problem.
b. What is the critical path?
c. What is the total project completion time?
d. What is the slack time for each individual activity?
Discussion Question
e. Why do you think project management is needed in this scenario?
The Advanced Tech Company has a project to design anintegrated information database for a major bank. Datafor the project are given in Table 7.6. Indirect project costsamount to $300 per day. The company will incur a $150 perday penalty for each day the project lasts beyond day 14
a. What is the project’s duration if only normal times are used?b. What is the minimum-cost schedule?c. What is the critical path for the minimum-cost schedule?
The following table shows estimates of activity times (in weeks) for a project:
b. What is the probability that the project will be completed within 33 weeks?
c. What is the probability that the project will be completed in more than 34 weeks?
Activity
d. What is the probability that the project will be completed in 35 weeks?
ABCDEFG
А
G
Optimistic Most Probable
Time
Time
5
6
3.5
4
3
6
7
5
9
4
6.5
Suppose that the critical path is A-C-E-F-G. Use Appendix A to answer the questions. Do not round intermediate calculations. Round your answers to three decimal places.
a. What is the probability that the project will be completed within 36 weeks?
6
10.5
Pessimistic
Time
7
4.5
5
10
9
7
15
Chapter 13 Solutions
OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
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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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
- 8. You are in charge of organizing a dinner-dance concert for a local charity. You have reserved a hall that will seat 30 couples and have hired a band. Develop a scope statement for this project that contains examples of all the elements. Assume that the event will occur in 4 weeks and provide your best guess estimate of the dates and milestones.arrow_forwardI need a detailed explanation and assistance to solve this problem: A company decides to plan a project, with activities, precedences and random duration statistics given in the following table: Activity Immediate Predecessors Duration Minimum (weeks) Duration Mode (weeks) Duration Maximum (weeks) A none 2 5 9 B A 1 6 8 C A 3 5 12 D B 2 4 12 E B, C 4 6 8 F B 6 7 8 G D, E 1 2 6 H F, G 4 6 16 * What method should be used? Compute the mean and variances for each activity and add them to the table above * Draw the project network and label the arcs with the activity name. * Assuming that the critical path is AàBàP1àEàGàH, compute the probability that this path duration is between 28 weeks and 32 weeks. * Assuming that the critical path is AàBàP1àEàGàH, compute the number of weeks within which the project will be completed with probability 0.95.arrow_forwardYou are the project manager of the software installation project in Table. You would like to find the minimum- cost schedule for your project. There is a $1,000-per-week penalty for each week the project is delayed beyond week 25. In addition, your project team determined that indirect project costs are $2,500 per week. a. What would be your target completion week? b. How much would you save in total project costs with your schedule?arrow_forward
- You are the project manager of the softwaration project in the table below. You would like to find the minimum-cost schedule for your project. There is a $500-per-week penalty for each week the prop delayed beyond week 25. In addition, your project team determined that indirect project costs are $2,000 per week. 9 Normal Activity Immediate Predecessor(s) Time (weeks) 1 A B C D E F G H 1 a. What would be your target completion week? The target completion week is week A A, B B D E. F G C.F (Enter your response as an integer.) b. How much would you save in total project costs with your schedule? Total Savings S (Enter your response as an integer) 79832N 10 12 8 Normal Cost (S) 3,000 3,000 10,000 3,000 4,000 2,000 3,000 5,000 2,000 Crash Time (weeks) 1 58829136 Crash Cost ($) 3,000 6,000 12,000 9,000 5,000 5,000 9,000 7,000 8,000arrow_forwardGiven the following activity duration and field report, calculate the ACWP, BCWP, BCWS, CPI, CV, SPI, and SV. Also, project the estimated budget at completion and the estimated project duration. Feel free to use the Excel spreadsheet example and plug the new numbers in. Activity Predecessor Duration Cost/Day Total Cost A B U D E F Activity A B с D E A F B D D Actual % Completion 100 100 50 50 2 0 3 4 4 3 2 Field Report at the end of Day 5 Incurred Costs 400 1000 500 900 200 0 300 300 400 300 200 400 900 1200 1600 900 400arrow_forward(a) Draw a project network. (b) Determine the expected time and variance for each activity. (c) Determine earliest start time (ES), earliest finish time (EF), latest start time (LS), finish time (LF) and slack of each activity. (d) Find the critical path and the project completion time. (e) What is the probability that the project will be completed in 65 weeks?arrow_forward
- Part 1: Building a backyard swimming pool consists of nine major activities. The activities and their immediate predecessors are shown. Develop the project network. Part 2: Assume that the activity time estimates (in days) for the swimming pool construction project in Part 1 are as follows: a. What are the critical activities? b. What is the expected time to complete the project? c. Based only on the critical path, what is the estimated probability that the project can be completed in 25 or fewer days?arrow_forwardThe following represents a project that should be scheduled using CPM: ACTIVITY A B C D E F G H IMMEDIATE PREDECESSORS A A B C, D D, E F,G b. What is the critical path? ⒸA-D-G-H OB-E-G-H ⒸA-C-F-H A-D-F-H Probability TIMES (DAYS) b Project completion time a 1 1 2 1 1 3 1 2 m 2 2 2 8 2 4 3 3 6 9 11 9 3 c. What is the expected project completion time? Note: Do not round intermediate calculations. Round your answer to 3 decimal places. 11 11 11 X Answer is not complete. days d. What is the probability of completing this project within 19 days? Note: Use Excel's NORM.S.DIST function to find the correct probability for your computed Z value. Do not round intermediate calculations. Round Z value to 2 decimal places and final answer to 4 decimal places.arrow_forwardDevelop a CPM diagram for the activities/relationships listed below (assumedurations are in months). For each activity calculate the Early Start, Late Start, EarlyFinish, Late Finish, Total Float, and Free Float. Clearly identify the critical path forthe project (hint: a highlighter would be a good tool to use) How do you solve this? I don't understand how it's done.arrow_forward
- The project manager at Golden Projects is preparing status reports for other project stakeholders. In which stage of the project life cycle are status reports done? Select one: a. Initiation b. Closing c. Executing O d. Planningarrow_forwardYou are the project manager of the software installation project in Table 7.12. You would like to find the minimum-cost schedule for your project. There is a $1,000-per-week penalty for each week the project is delayed beyond week 25. In addition, your project team determined that indirect project costs are $2,500 per week.a. What would be your target completion week?b. How much would you save in total project costs with your schedule?arrow_forwardThe following bar chart shows the activities for a project. The total project cost is $1,545. Time (weeks) 6 7 Total Activity Cost 2 3 4 8 | 9 10 A $120 В $35 $80 D $270 E $60 F $180 $270 $90 G J $160 K $60 L $220 $1,545 After three weeks, Activities A, C, E, half of B, quarter of F, and two thirds of H are completed for a cost of $435. At this point in time (three weeks after the start date), what is the status of the project in terms of budget (over or under budget) and schedule (ahead or behind schedule)? Use SPI and CPI to determine your answers.arrow_forward
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