Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 4P
Given the activities whose sequence is described by the following table, draw the appropriate activity-on-arrow (AOA) network diagram.
- a. Which activities are on the critical path?
- b. What is the length of the critical path?
| ACTIVITY | IMMEDIATE PREDECESSOR(S) | TIME (DAYS) | ||
| A | - | 5 | ||
| B | 2 | |||
| C | 4 | |||
| D | 5 | |||
| E | 5 | |||
| F | 5 | |||
| G | E, F | 2 | ||
| H | 3 | |||
| I | G, H | 5 | ||
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Sammy's Soldier, manufactures paints. Its costing system utilizes two cost categories, direct materials and conversion costs. Each product must pass through Department A and Department B. Direct materials are added at the beginning of production. Conversion costs are allocated evenly throughout production. Data for Department A for February 2017 are: Work in process, beginning inventory, 30% converted.............. 200 units
Units started during February............................................................... 800 units
Work in process, ending inventory..................................................... 240 units
Costs for Department A for February 2017 are:
Work in process, beginning inventory: Direct materials.................................................. $150,000
Conversion costs............................................................................................................................. $210,000
Direct materials costs added during…
Consider the following data collected for Albo's Rentals:
Direct Materials Direct Manufacturing Labor
Cost incurred
Actual inputs x Actual prices $210,000 $95,000
Actual inputs x standard prices 214,000 88,000
Standard inputs allowed for
actual output x standard prices 220,000 85,000
Required: Compute the price and efficiency variances for direct materials:
Question 17Answer
a.
Price $4000 F; Efficiency $10000 U
b.
Price $5000 F; Efficiency $5000 F
c.
Price $4000 F; Efficiency $6000 F
d.
Price $10000 U; Efficiency $4000 F
Already got wrong Chatgpt answer Plz don't use chat gpt
Chapter 3 Solutions
Operations Management
Ch. 3 - Give an example of a situation in which project...Ch. 3 - Explain the purpose of project organization.Ch. 3 - What are the three phases involved in the...Ch. 3 - What are some of the questions that can be...Ch. 3 - Define work breakdown structure. How is it used?Ch. 3 - What is the use of Gantt charts in project...Ch. 3 - What is the difference between an...Ch. 3 - What is the significance of the critical path?Ch. 3 - What would a project manager have to do to crash...Ch. 3 - Describe how expected activity times and variances...
Ch. 3 - Define earliest start, earliest Finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - What are dummy activities? Why are they used in...Ch. 3 - What are the three time estimates used with PERT?Ch. 3 - Would a project manager ever consider crashing a...Ch. 3 - How is the variance of the total project computed...Ch. 3 - Describe the meaning of slack, and discuss how it...Ch. 3 - How can we determine the probability that a...Ch. 3 - Name some of the widely used project management...Ch. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - 3.2 Robert Day has decided to run for a seat as...Ch. 3 - Draw the activity-on-node (AON) project network...Ch. 3 - Given the activities whose sequence is described...Ch. 3 - 3.5 Using AOA, diagram the network described below...Ch. 3 - Stephen Hall is developing a program in supply...Ch. 3 - Task time estimates for the modification of an...Ch. 3 - 3.8 The City Commission of Nashville has decided...Ch. 3 - Refer to the table in Problem 3.8. a. Draw the AON...Ch. 3 - The activities needed to build a prototype laser...Ch. 3 - Dave Fletcher (see Problem 3.10) was able to...Ch. 3 - The activities described by the following table...Ch. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The following is a table of activities associated...Ch. 3 - Assume that the activities in Problem 3.15 have...Ch. 3 - Bill Fennema, president of Fennema Hospitality,...Ch. 3 - What is the minimum cost of crashing the following...Ch. 3 - Three activities are candidates for crashing on a...Ch. 3 - Development of Version 2.0 of a particular...Ch. 3 - The estimated times and immediate predecessors for...Ch. 3 - Rich Cole Control Devices, Inc., produces...Ch. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Using PERT, Adam Munson was able to determine that...Ch. 3 - Clark Products makes pizza ovens for commercial...Ch. 3 - The Tesla 6 is a new custom-designed sports car....Ch. 3 - TABLE 3.6 Southwestern University Project 1....Ch. 3 - TABLE 3.6 Southwestern University Project 2 What...Ch. 3 - TABLE 3.6 Southwestern University Project 3. If it...Ch. 3 - Project Management at Arnold Palmer Hospital Video...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...
Knowledge Booster
Learn more about
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
- Many artists and art lovers embrace the idea of the “starving artist,” such as the early career artist who hasn’t yet sold much of her art or whose art hasn’t yet been “discovered,” the artist who sacrifices lifestyle, living in a cheap apartment in a poor neighborhood, scraping by with barely enough to eat, pouring every dollar at their disposal into his art, or the artist who makes do by working other jobs, such as a waiter or waitress, to pay the rent so he can work on his art in his free time. As an artist and businessperson, however, you’d rather not be a “starving artist.” Of course, it takes time to master your art, display your work, and build a following, but is it necessary if you’re successful as an artist to also be a bad businessperson. The challenge with your art, bronze sculptures, however, is what comes first, the chicken or the egg, in other words, success as an artist or financial success. With the cost of materials, foundry time to pour and shape your creations,…arrow_forwardCan you guys help me with this? Thank you! Here is the article's title by Murray Stassen about the current event: Clemens Trautmann promoted to President of Deutsche Grammophon and New Business Strategy This assignment requires the use of the concepts and theories learned to analyze a current event in the business world. It needs to be relevant to strategic management and has the quality of analysis of the situation from the article. From this situation, which of these concepts and theories could be applied to? * Five Generic Competitive Strategies: + Broad Low-Cost Strategy + Broad Differentiation Strategy + Focused Low-Cost Strategy + Focused Differentiation Strategy + Best-Cost Strategy * Ethical Universalism * Ethical Relativism * Corporate Social Responsibilityarrow_forwardIdentify the causes of the problem. -Start by Reviewing the Inputs box in the Organizing Framework to help you identify the causes of the problem in this case. First identify the person factors and then situation factors as inputs. -Then move to the Processes box in the Organizing Framework and review the potential causes among individual level, team level and organizational level factors. -For each cause explain why this is a cause of the problem. For each cause ask yourself “why” is this a cause to the problem we identified. Remember that asking why multiple times will help you find the root cause of the problem.arrow_forward
- 6. Develop a POQ solution and calculate total relevant costs for the data in the following table. Period 1 2 3 4 5 6 7 8 9 10 11 12 Gross requirements 30 40 30 70 20 10 80 50 Holding cost =$2.50/unit/week Holding cost =$2.50/unit/week; setup cost =$150setup cost =$15 0; lead time =1 week lead time =1 week; beginning inventory =40beginning inventory =40.arrow_forward5. Develop a lot-for-lot solution and calculate total relevant costs for the data in the following table. Period 1 2 3 4 5 6 7 8 9 10 11 12 Gross requirements 30 40 30 70 20 10 80 50 Holding cost =$2.50/unit/week Holding cost =$2.50/unit/week; setup cost =$150setup cost =$15 0; lead time =1 week lead time =1 week; beginning inventory =40beginning inventory =40.arrow_forward4. The demand for subassembly S is 100 units in week 7. Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S, 1 week to make T, 2 weeks to make U, 2 weeks to make V, 3 weeks to make W, 1 week to make X, 2 weeks to make Y, and 1 week to make Z. Construct a net material requirements plan using the following on-hand inventory. Item On hand inventory Item Inventory On hand S 20 W 30 T 20 X 25 U 40 Y 240 V 30 Z 40arrow_forward
- 3. WestJet’s daily flight from Edmonton to Toronto uses a Boeing 737, with all-coach seating for 120 people. In the past, the airline has priced every seat at $140 for the one-way flight. An average of 80 passengers are on each flight. The variable cost of a filled seat is $25. Katie Morgan, the new operations manager, has decided to try a yield-revenue approach, with seats priced at $80 for early bookings and at $190 for bookings within one week of the flight. She estimates that the airline will sell 65 seats at the lower price and 35 at the higher price. Variable cost will not change. Which approach is preferable to Ms. Morgan?arrow_forward2. A large Saskatchewan feed mill, B. Swart Processing, prepares its sixty-month aggregate plan by forecasting demand for 50-pound bags of cattle feed as follows: January, 1000 bags; February, 1200; March, 1250; April, 1450; May, 1400; and June, 1400. The feed mill plans to begin the new year with no inventory left over from the previous year, and backorders are not permitted. It projects that capacity (during regular hours) for producing bags of feed will remain constant at 800 until the end of April, and then increase to 1100 bags per month when a planned expansion is completed on May 1. Overtime capacity is set at 300 bags per month until the expansion, at which time it will increase to 400 bags per month. A friendly competitor in Alberta is also available as a backup source to meet demand—but can provide only 500 bags total during the six-month period. Develop a six-month production plan for the feed mill using the transportation method. Cost data are as follows: Regular-time…arrow_forwardFor the following monthly demand forecast develop an aggregate plan when a) 55 units per day is produced and unmet demand is backordered. b) 42 units per day is produced and overtime is used when needed. Month Demand Production Days 1 1175 20 2 1600 22 3 1300 21 4 900 21 5 900 19 6 1000 22 item cost Inventory carrying cost $ 5 per unit per month Subcontracting cost per unit $20 per unit Average pay rate $10 /hr ($80 per day) Overtime pay rate $17/hr (above 8 hrs/day) Labour-hours to produce a unit 1.6 hours per unit Cost of increasing daily production rate (hiring and training) $300 per unit Cost of decreasing daily production rate (layoffs) $600 per unit Backorder $10 per unitarrow_forward
- Try to think about organizational specific challenges and pathways in developing a performance management process for is cleaners and Cigna Accredo pharmacy In the context of KS Cleaners, critically evaluate the availability of any prerequisites to implementing a performance management process. Provide a detailed discussion of both the responsibilities of the manager and the responsibility of the general duty employees during the performance execution phase. Explain the process that Kevin should use to get information when he is developing the performance assessments for the general duty employees and help answer the question. Discuss the importance of the HR role in the Strategic Planning Process.arrow_forward: Dene the problem.A. Look rst at the Outcomes box of the Organizing Framework to help identify theimportant problem(s) in this case. Remember that a problem is a gap between adesired and current state. State your problem as a gap and be sure to considerproblems at all three levels. If more than one desired outcome is not beingaccomplished, decide which one is most important and focus on it for steps 2 and 3.B. Cases have key players, and problems are generally viewed from a particular player’sperspective. You need to determine from whose perspective—employee, manager,team, or the organization—you’re dening the problem. In this case you’re asked toassume the role of the board of directors for Boeing (they have ultimate responsibilityfor the entire organization).C. Use details in the case to determine the key problem. Don’t assume, infer, or createproblems not included in the case.D. To rene your choice, ask yourself, why is this a problem? Explaining why helps reneand focus your…arrow_forwardQuestion 5 Which of the following is a hazardous task that the worker should refuse to do? Question 5 options: A) A worker is asked to repair the siding on a house from an extension ladder 15 feet above the ground B) A worker is asked to use a band saw even though the mechanism to adjust the sliding guard on the saw is stuck and can't be moved C) A worker who has not received any training on how to safely handle biological hazards is asked to rush emergency blood and urine samples to the lab D) All of the above Question 6 The range of fuel vapor concentrations where a fire can occur is referred to as: Question 6 options: A) The ignition range B) The flammability limits C) The flammable range D) The saturation vapor range…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill Education
Operations 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 Learning
Production and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
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
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.
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY