Concept explainers
Gabrielle Kramer, owner of Pet Paradise, is opening a new store in Columbus, Ohio. Her major concern is the hiring of a manager and several associates who are animal lovers. She also has to coordinate the renovation of a building that was previously owned by a chic clothing store. Kramer has gathered the data shown in Table 7.14.
- How long is the project expected to take?
- Suppose that Kramer has a personal goal of completing the project in 14 weeks. What is the probability that it will happen this quickly?
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
Additional Business Textbook Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
Principles Of Operations Management
Operations Management
Operations Management, Binder Ready Version: An Integrated Approach
Business in Action (8th Edition)
Operations and Supply Chain Management 9th edition
- 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 15arrow_forwardPlease solve my Problem as Soon as possible. Thank You!arrow_forwardA project consists of five activities listed below. The project network is shown for the activities. The critical path is B-C-E and the expected completion time is 8. Optimistic Most Probable Pessimistic Activity Time (hr) Time (hr) Time (hr) A Floor sanding 3 4 5 B Paint mixing 0.5 1 1.5 C Ceiling painting 1 5.5 7 D Wall painting 1 2 9 E Floor buffing 1 2 3 What is the probability that the project can be completed within 9 hr.?arrow_forward
- 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 $50,000arrow_forwardDave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times: Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s) A B с D 7 8 80 31 3 A A Dave's earliest start (ES) and earliest finish (EF) are: Activity A EFI G H ES EF 7 4 5 11 6 B B C, E D, Farrow_forwardProblem 2: Chicago Project You are asked to manage an upcoming project for a client based in Chicago. Your supervisor, Susan, asked you to determine if the project will be completed in 2 months (60 days). Susan sent you the estimated time durations (in days) for the project. The information is given below: Compute the expected time and variance for each activity. What is the critical path and the expected duration of the project? What is the probability that the project will take longer than 58 days to complete?arrow_forward
- The diagram below was developed for the project launch of Kitty Condo, a new product in the luxury cat cage market. Suppose that you are interested in finding ways to speed up the project at minimal additional cost. Determine the schedule for completing the project in 26 days at minimum cost. Penalty and project overhead costs are negligible. Time and cost data for each activity are shown below. Activity A B C D E F G I 1 Normal Time (days) 9 11 7 11 12 6 10 6 5 Cost ($) Time (days) 1,300 1,050 3,000 2,000 650 700 1,550 600 2,200 Activity A B C D E Crash 7 9 3 10 10 3 7 3 1 Calculate the total cost for this project's schedule. Total cost = $ (Enter your response as a whole number.) Time according to schedule (days) Cost ($) 2,700 1,280 6,200 2,300 1,100 1,900 2,750 1,125 5,800 A Activity F G H | Start B E Diagram Fill in the table below to show the proper schedule for completing the project in 26 days at minimum cost (i.e., the activity times with crashing for each activity). (Enter…arrow_forward1. A project was planned using PERT with three-time estimates. The expected completion time of the project was determined to be 40 weeks. The variance of the critical path is 9. (b) What is the probability that the project takes longer than 40 weeks?arrow_forward8. 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_forward
- The following estimates of activity times (in days) are available for a small project: Activity Optimistic Most Probable Pessimistic A 4 5.0 6 B 8 9.0 10 C 7 7.5 11 D 7 9.0 10 E 6 7.0 9 F 5 6.0 7 Compute the expected activity completion times and the variance for each activity. An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path.arrow_forwardExpected length of a project is 37.16 days and the variance of its length is 6.14 days. What is the probability that the project is completed within 40 days?arrow_forwardA project consisting of the following activities: Activity Predecessor Duration (months) A 2 B Activity A Duration (hours) 1 Predecessor - 3 C 2 D B B 5 1 4 E A, B C 3 1 3 F B 2 D 3 2 G F, C 5 H G Identify the critical path and obtain the project completion time. Calculate free float for each activity. The table describes the activities needed in planning a training session. E 1 4 4 I F F 4 4 3 J I, D 2 G 1 5 H 3 3,6 Determine the critical path and the expected completion time of the training session. K J 1 L E 6arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.