Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 7, Problem 17P
A
Summary Introduction
Interpretation: The earliest date for completion of the project with using the normal times is to be determined.
Concept Introduction: Network diagram is a graphical representation of tasks in symbols and lines for easy understanding. The networking technique is a method for planning, programming and controlling of work in progress.
B
Summary Introduction
Interpretation: The minimum cost project scheduled should be found out.
Concept Introduction: Network diagram is a graphical representation of tasks in symbols and lines for easy understanding. The networking technique is a method for planning, programming and controlling of work in progress.
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You are in charge of a project at the local community center. The center needs to remodel one ofthe rooms in time for the start of a new program. Delays in the project mean that the center mustrent other space at a nearby church at additional cost. Time and cost data for your project arecontained in below table. Your interest is in minimizing the cost of the project to the communitycenter.Using the normal times for each activity, what is the earliest date you can complete the project?Suppose the variable overhead costs are $50 per day for your project. Also, suppose that thecenter must pay $40 per day for a temporary room on day 15 or beyond. Find the minimum-costproject schedule using below format.The AON diagram for the community center project is below.
Crash 4 times and find total cost.
You are in charge of a project at the local community center. The center needs to remodel one of the rooms in time for the start of a new program. Delays in the project mean that the center must rent other space at a nearby church at additional cost. Time and cost data for your project are contained in 7.10. Your interest is in minimizing the cost of theproject to the community center.a. Using the normal times for each activity, what is the earliest date you can complete the project?b. Suppose the variable overhead costs are $50 per day for your project. Also, suppose that the center must pay $40 per day for a temporary room on day 15 or beyond. Find the minimum-cost project schedule.
Recently, you were assigned to manage a project to remodelthe seminar room for your company. You have constructed anetwork diagram depicting the various activities in the project(Figure 7.13). In addition, you have asked your team to estimatethe amount of time that they would expect each of the activitiesto take. Their responses are shown in the following table:
a. What is the expected completion time of the project?b. What is the probability of completing the project in 21 days?c. What is the probability of completing the project in 17 days?
Chapter 7 Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Ch. 7 - One of your colleagues comments that software is...Ch. 7 - Explain how to determine the slack for each...Ch. 7 - Define risk as it applies to projects. What are...Ch. 7 - Consider the following data for a project to...Ch. 7 - The following information is known about a project...Ch. 7 - A project for improving a billing process has the...Ch. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Consider the following information for a project...Ch. 7 - Consider the following data for a project to...
Ch. 7 - Paul Silver, owner of Sculptures International,...Ch. 7 - Prob. 9PCh. 7 - The following information concerns a project to...Ch. 7 - Consider a project to produce custom door moldings...Ch. 7 - Table 7.5 contains information about au...Ch. 7 - The Advanced Tech Company has a project to design...Ch. 7 - Prob. 14PCh. 7 - Table 7.8 contains data for the installation of...Ch. 7 - The diagram in Figure 7.12 was developed for the...Ch. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - You are the project manager of the software...Ch. 7 - Jordanne King, the project manager for Webjets...Ch. 7 - Recently, you were assigned to manage a project to...Ch. 7 - In Solved Problem 2, estimate the probability that...Ch. 7 - The director of continuing education at Bluebird...Ch. 7 - Gabrielle Kramer, owner of Pet Paradise, is...Ch. 7 - The project manager of Good Public Relations...Ch. 7 - Consider the office renovation project data in...Ch. 7 - Activity B and activity K are critical activities....Ch. 7 - Prob. 2AMECh. 7 - Prob. 3AMECh. 7 - Prob. 4AMECh. 7 - Prob. 5AMECh. 7 - Assess the four categories of a risk-management...Ch. 7 - Prob. 2VCCh. 7 - Assume you are Denise Tower and have...Ch. 7 - Prob. 1CCh. 7 - Prob. 2CCh. 7 - Prob. 3CCh. 7 - Prob. 4C
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- You are in charge of a project at the local community center. The center needs to remodel one of the rooms in time for the start of a new program. Delays in the project mean that the center must rent other space at a nearby church at additional cost. Time and cost data for your project are contained in the table. Your interest is in minimizing the cost of the project to the community center. a. Using the normal times for each activity, what is the earliest date you can complete the project? b. Suppose the variable overhead costs are $50 per day for your project. Also, suppose that the center must pay$40 per day for a temporary room on day 15 or beyond. Find the minimum-cost project schedule.arrow_forwardthe budget of a project is $1 million. The actual cost for work performed is currently $700k. The budgetted cost for work performed is $660k. What is the current progress of the project? The budgeted cost for work scheduled is 700k. Is it on schedule?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
- Following are the three time estimates for a task in a project: optimistic completion time = 2 weeks most likely completion time = 4 weeks pessimistic completion time = 7 weeks Compute the expected time for the task.arrow_forwardFarihah is a project manager for a systems development project involving a new database application for her organization’s human resources department. Despite Farihah’s best efforts at estimating the time requirements for the project, the team has missed the deadline for completing the Analysis Phase and producing the System Proposal. Farihah had estimated during her 6-week Planning Phase that Analysis would require 2 months, but the team finished the System Proposal 2 weeks behind their planned target date. Based on her discussions with the team members, Farihah believes that the system is more complex than she originally thought. Should Farihah adjust her timeline, or can she try to make up for the lost two weeks? Farihah needs your advice.arrow_forwardYou are in charge of a project. Your team has determined that there are 7 activities to be completed. Here are the activities, the time to complete the activity and the immediate predecessor of the activity. Using this data 1) construct a Gantt Chart, 2) determine the time it will take to complete the project, 3) You are monitoring the progress of this project and discover that activity C is in danger of taking longer than planned due to funding issues. What options do you have to get the project back on track? Activity Time Immediate Predecessor A 10 Weeks None B 6 Weeks A C 7 Weeks A D 6 Weeks B E 8 Weeks C F 3 Weeks D G 4 Weeks Farrow_forward
- Only typed explanation The table below contains data for the installation of new equipment in a manufacturing process at Excello Corporation. Your company is responsible for the installation project. Indirect costs are $12,000 per week, and a penalty cost of $10,000 per week will be incurred by your company for every week the project is delayed beyond week 14. What is the shortest time duration for this project regardless of cost? What is the minimum total cost associated with completing the project in 14 weeks? What is the total time of the minimum-cost schedule?arrow_forwardThe 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_forward11-27 General Foundry’s project crashing data are shown in Table 11.9. Crash this project to 13 weeks using CPM. What is the final time for each activity after crashing?arrow_forward
- Project Management Homework-Project Crashing Use the following scenario and data to answer all related questions. A community neighborhood association decided to add a swimming pool to the community activity center. The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given. To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs. If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity. Activity Immediate Predecesso Normal Gs) Cost (5) Cost (5) Crashed Normal Crashed A 4 2 800 1400 B A 5 2 3000 4200 C 6 4 2500 2800 D A, C 7 5 1600 2200 E B, C 5 2 1200 2100 F D 4 3 1300 2100 G E, F 5 3 8200 9000 To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week. Immediate…arrow_forwardThe director of continuing education at Bluebird University just approved the planning for a sales training seminar. Her administrative assistant identified the various activities that must be done and their relationships to each other, as shown in the following table: Click the icon to view the activities. Because of the uncertainty in planning the new course, the assistant also has supplied the following time estimates for each activity: Click the icon to view the time estimates. The director wants i conduct the seminar 45 working days from now. What is the probability that everything will be ready in time? Refer to the standard normal tathe. (Make sure to round all intermediate calculations for and variance to two decimal places) The probability that the seminar will be ready in time is (Enter your response rounded to four decimal places)arrow_forwardThree activities are candidates for crashing on a project network for a large computer installation (all are, of course, critical) Activity details are in the following table: a) Activity that should be orashed first to reduce the project duration by 1 day is b) Activity that should be crashed next to reduce the project duration by one additional day is c) Total cost of crashing the project by 2 days = S (Enter your response as an integer) Normal Activity Time (days) A B C 7 4 11 Crash Normal Time (days) Cost $8,000 $1,200 $4,200 6 2 9 Total Cost with Crashing Immediate Predecessor(s) $6,500 $3,000 $6.200 A Barrow_forward
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