EBK OPERATIONS MANAGEMENT
11th Edition
ISBN: 8220103630726
Author: RENDER
Publisher: PEARSON
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Chapter 3, Problem 22P
Rich Cole Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project undertaken by Cole requires 14 different activities. Cole’s managers would like to determine the total project completion time (in days) and those activities that lie along the critical path. The appropriate data are shown in the following table.
- a. What is the probability of being done in 53 days?
- b. What date results in a 99% probability of completion?
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PP.52 A manufacturer of solid state drives (SSDs) has projected the next six months of demand to be as shown the table below:
Supply/Demand Info
Beginning
Jan
Feb
Mar
Apr
May
Jun
Forecast (demand)
53,800
53,400
51,000
63,800
49,200
59,000
Regular production
Overtime production
Subcontract production
Ending inventory
4,000
Hired employees
Fired employees
Total employees
190
Cost variables are as follows:
Cost Variables
Labor cost/hour
$16
Overtime cost/unit
$39
Subcontracting cost/unit
$35
Holding cost/unit/month
$14
Hiring cost/employee
$3,100
Firing cost/employee
$5,500
Here is some additional relevant (capacity) information:
Capacity Information
Total labor hours/SSD
4
Regular production units/employee/month
200…
Discuss how a human resource professional can better gain the confidence of senior management and, thereby, become a key participant/player in the organization’s future.
PP.63 Jupiter, a large candy company, is having great success with its "Swan" family of candy bars. Due to a number of factors they like to plan their production at least six months into the future. The table below contains their demand projections (in tons) for April through September:
Supply/Demand Info
Beginning
Apr
May
Jun
Jul
Aug
Sep
Predicted Sales
45,500
45,100
51,900
52,800
47,900
47,200
Regular production
Overtime production
Subcontract production
Ending inventory
14,400
Hired employees
Fired employees
Total employees
423
Cost variables are as follows:
Cost Variables
Labor cost/hour
$13
Overtime cost/ton
$30
Subcontracting cost/ton
$28
Holding cost/ton/month
$14
Hiring cost/employee
$3,700
Firing cost/employee
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Here is some additional…
Chapter 3 Solutions
EBK 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,...
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