Dave 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 eachactivity. The total project completion time and the critical path should also be determined. Here are the activity times:TimeActivity (weeks)ABCDDave's earliest start (ES) and earliest finish (EF) are:500 3 38ImmediatePredecessor(s)AAActivityABCTimeActivity (weeks)5597EFGHES00EF588ImmediatePredecessor(s)BBC, ED, F

Activity Duration A5B8C3D3E5F5G9H7

Answered: Fletcher was able to determine the…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

See similar textbooks

Similar questions

Project Management i 42:20 C aw The network diagram and task times for a project are shown below. Task A₁ A₂ A₁ A₂ Late finish time A3 Duration (days) 66314 A3 A₁ A5 What is the late finish time for activity A₁? A4 4 days Saved As
Reliable Garage is completing production of the J2000 kit car. The following data are available for the project: Activity Time (days) 4 a. Choose the correct network diagram below for this project. A. C. A 4 S B 4 SH A 4 E 3 F 2 G 4 D H 5 F G Activity ABCDEFGH ABCDEFI с NA G 4 H 2 11 3 UAN с b. Determine the project's critical path and duration. The critical path is A-B-C-D-H and the project duration is 26 day(s). (Enter your response as a whole number.) c. What is the slack for each activity? 2 Activity 4 5 Immediate Predecessor(s) B. D. Activity Time (days) 4 4 2 11 3 2 4 5 S A Slack (days) oooooooo A B F D, E, G 5 F G
2. Three activities are candidates for crashing on a CPM network. Activity details are in the table below. Activity Normal Time Normal Cost Crash Duration Crash Cost A 9 days $8,000 7 days $12,000 B 5 days $2,000 3 days $10,000 с 12 days $9,000 11 days $12,000 a. What is the crash cost per unit time for activity A? b. What is the crash cost per unit time for activity B? c. Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost? d. Which activity should be the next activity crashed to cut a second day from the project's duration; how much is added to project cost? e. Assuming no other paths become critical, how much can this project be shortened at what total added cost?
Activity A B D E F H I Dependency A A B C D E F,G,H Duration (week) LO 5 4 3 7 3 4 3 2 4 a. Draw a project network diagram then show the calculation for Early Start (ES), Early Finish (EF), Late Start (LS) and Late Finish (LF). b. Find the critical path for the project
2. The time estimates (in weeks) for the activities of a PERT network are given below. (i) (ii) 1-2 1-3 1-4 2-5 3-5 4-6 5-6 18 9 10 8 16 7 Activity to 24 16 3 tm 7 9 20 14 2 tp 9 20 11 11 28 18 4 Draw the project network and calculate the project length. Calculate the standard deviation and variance along the critical path. (iii) Find the probability of completing the project one day earlier and 2 days later.
Use (AON) method
The project manager of XWZ, glass Inc. gathered the data as shown in Table 1 for a new advertising campaign. Table 1: Activity Data for Advertising Project Time Estimates (Weeks) Activity Optimistic Most Likely Pessimistic Immediate Predecessor(s) A 7 10 13 Start B 4 8 16 Start C 7 8 9 Start D 1 2 4 B E 7 10 11 A, C F 4 6 7 D, E G 1 3 6 D, E H 1 5 7 F, G I 1 4 6 G J 3 5 9 H K 3 3 3 H a) Draw AON diagram showing ES EF, LS and LF; then find how long is the project to take? b) What is the probability that the project will take more than 37 weeks? c) Consider the path A-E-G-H-J. What is the probability that this path will exceed 37 weeks?
B indicate critical path C what is expected completion for the project? D what is the probability that the project will take more than 30 days to complete?
Exercise #1 Time data for the below AON project network are given in the following table. E Duration Activity ESD EFD LSD LFD FF TF (in days) A 2 B 10 15 D 5 E 3 F 9 5 H 6 K 4 a. For each activity, calculate: ESD, EFD, LSD, LFD, FF, and TF. (Report your answers in the table above) b. Find the critical path(s), and the project duration.
c-1. The following information pertains to a project that is about to commence. Which activities would you be concerned with in terms of timely project completion? Estimated Duration Activity Precedes (days) A B 15 с, D 12 B E End End F G, H G I H. 6. End 7. K 14 K End 6. Activity ES EF LS LF Slack A D E G J K c-2. Identify the critical activities, and determine the duration of the project. The critical activities are (Click to select)
Given the information below, what are the estimated expected (mean) times (in weeks) for activities A-H? What are the estimated standard deviations (in weeks) in the times for activities A-H?
(2) Consider the following project: Activity A B D E F G H I Immediate Optimistic Most Probable Predecessor (days) (days) A A B, C B A D G E, H, F I 4 2 1 2 1 I 1 1 2 6 4 2 3 2 2 2 1 Pessimistic (days) Draw the Network diagram. • Calculate expected time and variance for each activity. Find the critical path. • Calculate the total project completion time. • Find project variance. 3 8 6 3 4 3 3 3 1

SEE MORE QUESTIONS

Recommended textbooks for you

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Operations Management

ISBN:

9781259667473

Author:

William J Stevenson

Publisher:

McGraw-Hill Education

Operations and Supply Chain Management (Mcgraw-hi…

Operations Management

ISBN:

9781259666100

Author:

F. Robert Jacobs, Richard B Chase

Publisher:

McGraw-Hill Education

Practical Management Science

Operations Management

ISBN:

9781337406659

Author:

WINSTON, Wayne L.

Publisher:

Cengage,

Operations Management

ISBN:

9781259667473

Author:

William J Stevenson

Publisher:

McGraw-Hill Education

Operations and Supply Chain Management (Mcgraw-hi…

Operations Management

ISBN:

9781259666100

Author:

F. Robert Jacobs, Richard B Chase

Publisher:

McGraw-Hill Education

Business in Action

Operations Management

ISBN:

9780135198100

Author:

BOVEE

Publisher:

PEARSON CO

Purchasing and Supply Chain Management

Operations Management

ISBN:

9781285869681

Author:

Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson

Publisher:

Cengage Learning

Production and Operations Analysis, Seventh Editi…

Operations Management

ISBN:

9781478623069

Author:

Steven Nahmias, Tava Lennon Olsen

Publisher:

Waveland Press, Inc.

SEE MORE TEXTBOOKS