Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
12th Edition
ISBN: 9780134855424
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 1AME
Activity B and activity K are critical activities. Describe the difference that occurs on the graph when you increase activity B versus when you increase activity K.
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There are various approaches to reducing the estimated duration of activities. These are:(a) Apply more resources to accelerate an activity.(b) Reduce the scope or requirements for an activity.
Explain and give an example for each of the approaches above.
Consider the following network for conducting a two-week (10 working days) computer training class:
(a) refer to the pic I uploaded :))
Construct a schedule showing:
ESs for all activities
LSs for all activities
Slacks for all activities
Critical path
There is a running project in the company that you work for, which has the following activities:
Activity
Predecessors
Duration
A
-
4
B
A
4
C
A
7
D
B
6
E
C
4
F
D, E
2
Draw a network diagram for the above activities.
Identify the critical path.
Show the formula for calculating the EF and ES.
“You must mention how did you know that this is your critical path”
Chapter 7 Solutions
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
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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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
- The activity times are 3, 4, 2, 5, 7, 2, 2, and 3 days for activities A1 through A8,respectively. What is the critical path?a. A1, A2, A3, A4, A8b. A1, A2, A3, A6, A7, A8c. A1, A2, A5, A7, A8d. None of these options is the critical path.arrow_forwardWhat is the Ealiest and Latest start for Activity I and Latest finish for Activity G?arrow_forward. True/False Statements (Tick the correct option) Selection of the critical path in network activity diagram for any project, is always focused onresult of the minimum time duration of the critical activities [ True / False ] Suppose, we have total 03 activities in the project “X”; namely L, M and N respectively. An activity “M” is the immediate successor of the activity “L”, while the activity “M” is the immediate predecessor for the activity “N”. According to this scenario, an activity “M” will be the last activity of the project “X” in the network activity diagram [True / False ] The dummy activity consumes both time and resources [True / False ] Towards the optimal solution through stepping stone method, when degeneracy problem is occurred, the next step is to focus on searching lowest value on the independent position in a non-allocated cells [True / False ] Hungarian algorithm, first convert any given assignment matrix into row reduction matrix [True / Falsearrow_forward
- Identify the term being described for each of the following: (a). A sequence of activities in a project. (b). The longest time sequence of activities in a project. (c). Used when two activities have the same starting and finishing points. (d). The difference in time length of any path and the critical path. (e). The statistical distribution used to describe variability of an activity time. (f). The statistical distribution used to describe path variability. (g). Shortening an activity by allocating additional resources.arrow_forwarda. Activity 'K' is a critical activity b. Activity 'K' is not a critical activityarrow_forwardRead the following set of activities carefully. The precedence of all activities is finish to start. Using either ADM or PDM, perform the following tasks. Using forward pass, calculate earliest start and earliest finish for each activity Complete the table showing all the information regarding each activity that has been acquired Activity # Activity Identifier Activity Duration Precedence 1 A 4 None 2 B 7 None 3 C 9 B 4 D 5 C 5 E 6 A, D 6 F 4 C, D, E 7 G 5 F 8 H 2 G 9 I 5 G, Harrow_forward
- I need assistance with the following questions in: Project Scheduling. This is a follow up to a question answered earlier. Question 1) was answered. 1) A company decides to plan a project, with activities, precedences and deterministic durations given in the following table: Activity i Duration (days) Immediate Predecessors A 32 none B 21 none C 30 none D 45 A E 26 A, B F 28 C G 20 E, F 2) The company decided that the project in the previous problem has to be expedited in order to optimize (minimize) the project cost. Expediting can be used to trade direct cost for indirect cost, since expediting the project reduces the indirect cost of the project by a fixed amount per day, while expediting an activity increases its total direct cost. The Accounting Department found that indirect costs amount to $100 per day, while activity direct costs as well as their normal and expedited times are given in the table below.…arrow_forwardConsider the following table of activities A through E in which A is the start node and E is the stop node. Assume all activities require the same resource. On a piece of scratch paper, draw the early-start Gantt Chart associated with this table and determine the following. Assume the project is resource-constrained but not time-constrained. Assume only one resource is available and that resource can only do one activity at a time. Activities B, C and D all have the same early start date (time). Since there is only one resource, only one of the activities B, C, D can be started on the early start date. Which should be started first?arrow_forwardYou may need to use the appropriate technology to answer this question. Use the following network with activities and times estimated in days to answer the questions. A project network with 13 activities and 17 directed arcs is shown. Activity Start is connected to activity A, to activity B, and to activity C. Activity A is connected to activity D, to activity E, and to activity F. Activity B is connected to activity F. Activity C is connected to activity G and to activity H. Activity D is connected to activity K. Activity E is connected to activity I. Activity F is connected to activity I. Activity G is connected to activity I. Activity H is connected to activity J. Activity I is connected to activity K. Activity J is connected to activity K. Activity K is connected to activity Finish. Activity Finish has no arcs directed to other activities. Activity Optimistic Most Probable Pessimistic A 2 5 6 B 1 3 7 C 5 6 9 D 5 12 14 E 3 4 5 F 9 10 13 G 4 6 8 H 3 6 8 I 5 7 12 J 11 12 13 K 1 3 4…arrow_forward
- A 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_forwardPROJECT PLANNING & SCHEDULING WITH GANNT CHART Given the activities of a project, their time estimates, and their immediatepredecessors shown below:a. Draw the Gannt chart for this project.b. What’s the earliest expected time to finish the project?c. Which activities should not be delayed?d. Which activities can be delayed?e. What’s the maximum amount of time that each of the activities can be delayed without delaying the whole project? Activities Activity Times,months ImmediatePredecessors Maximum Slack,months A 2 - B 3 - C 2 A D 4 B E 4 C F 3 C G 5 D, E H 2 F, Garrow_forwardThe estimated times and immediate predecessors for the activities in a project at Howard Umrah's retinal scanning company are given in the following table. Assume that the activity times are independent. Time (weeks) Immediate Time (weeks) Immediate Activity a m b Predecessor(s) Activity a m b Predecessor(s) A 8 10 13 — C 9 10 13 A B 4 10 16 — D 6 8 12 B This exercise contains only parts a, b, c, and d. a) Based on the activity time estimates, the expected times and variance for each of the activities are (round your response to two decimal places): Activity Expected Time Variance A _________ ___________ B ______________ __________…arrow_forward
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