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5/8/2016 Week 6: Weekly Quiz : BMGT2331003
https://alamo.instructure.com/courses/969057/assignments/4390300/submissions/3258149 1/4
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Week 6: Weekly Quiz Due May 1 at 11:59pm Points 100 Questions 10 Time Limit 90 Minutes
Instructions
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LATEST Attempt 1 83 minutes 0 out of 100 *
Score for this quiz: 0 out of 100 * Submitted Apr 30 at 1:42pm This attempt took 83 minutes.
Greetings all,
Our assessment covers chapters 12 & 13 ; recall there is a 90 minute time limit. In addition, once you begin the quiz you do not have the ability pause or stop the exam. Therefore, do not attempt unless you are able to dedicate the entire 90 minutes.
Good luck, Dr. Chacon
Not yet graded / 10 ptsQuestion 1
Your Answer:
Describe the development and interpretation of the bathtub curve.
The bathtub curve is a plot of the probability of device failure against time.
Not yet graded / 10 ptsQuestion 2
Your Answer:
State the five types of attributes.
1 Structural attributes have to do with physical characteristics of a particular product or service.
2 Sensory attributes relate to senses of touch, smell, taste, vision, and sound.
3 Performance attributes relate to whether or not a particular product or service performs as it is supposed to.
4 Temporal attributes relate to time.
5 Ethical attributes answer whether a service provider is empathetic or if their accounting systems report properly.
5/8/2016 Week 6: Weekly Quiz : BMGT2331003
https://alamo.instructure.com/courses/969057/assignments/4390300/submissions/3258149 2/4
Not yet graded / 10 ptsQuestion 3
Your Answer:
Discuss series and parallel reliability models and the implications for product design.
Components in a system are in series if the performance of the entire system depends on all the components functioning properly. To compute the reliability of a system composed of components in series, the reliabilities of the individual components are multiplied together.
Not yet graded / 10 ptsQuestion 4
Your Answer:
The reliability of components in series is the product of their individual reliabilities. What implications does this have for the Space Shuttle?
The Space Shuttle has a large number of components in series. Hence it is very difficult to make the shuttle reliable. Redundant components would be one approach to making the shuttle more reliable, but that would be very expensive. A simpler (fewer components) shuttle would be easier to make reliable.
Not yet graded / 10 ptsQuestion 5
Your Answer:
An insurance claims department employs 10 claims adjusters that spend all day verifying that forms are valid and have been completed correctly. Forms with mistakes are useless and must be returned to the adjuster who must contact the customer again and resubmit the claim. The supervisor reviews two claims processed by each employee to verify that the process is working at acceptable levels. How should the process be monitored? Explain your reasoning.
Not yet graded / 10 ptsQuestion 6
Your Answer:
What are the titles and roles of the key players in Six Sigma efforts?
Green belt, black belt, master black belt, and champion.
Not yet graded / 10 ptsQuestion 7
5/8/2016 Week 6: Weekly Quiz : BMGT2331003
https://alamo.instructure.com/courses/969057/assignments/4390300/submissions/3258149 3/4
Your Answer:
A Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. The factors were tested at each of the following levels in hopes of improving engine horsepower.
Lift (L) 2.75 2.90 Bore (B) 0.10 0.30 Stroke (S) 0.50 0.60 Compression (C) 8.50 12.00
The following experiment was used and the results of all trials are as follows:
Trial L B S C Response
1 1 1 1 1 384
2 2 1 1 2 285
3 1 2 1 2 341
4 2 2 1 1 322
5 1 1 2 2 401
6 2 1 2 1 259
7 1 2 2 1 310
8 2 2 2 2 375
Determine the best levels for each factor and state your conclusions.
Not yet graded / 10 ptsQuestion 8
Your Answer:
What are attribute charts used for and how do they work?
Attribute charts deal with binomial and Poisson processes that are not measurements; rather, they are defects and defectives. Defects are irregularities in a larger unit that do not necessarily render the entire unit unusable. A defective is a unit that as a whole is not acceptable or does not meet performance requirements.
To make a process chart you first identify critical product characteristics and select the appropriate attribute chart from the many types. For constant sample sizes, p, np, c, or u chart may be used, with the first two types being used for defectives and the latter used for defects. For variable sample sizes, p or u charts should be used. Data should be collected, statistics computed, and the original data should be plotted on the chart.
Not yet graded / 10 ptsQuestion 9
5/8/2016 Week 6: Weekly Quiz : BMGT2331003
https://alamo.instructure.com/courses/969057/assignments/4390300/submissions/3258149 4/4
Your Answer:
What is robust design and what are the different types of design that compose it?
The concept of robust design is that products and services should be designed so they are inherently defect free and insensitive to random variation. Robust design may be achieved by concept design, parameter design, and tolerance design.
Not yet graded / 10 ptsQuestion 10
Your Answer:
What distinguishes Six Sigma from traditional continuous improvement?
Six Sigma represents a wellthoughtout packaging of quality tools and philosophies in an honest effort to provide rigor and repeatability to quality improvement efforts. Second, Six Sigma is much more costreductionoriented than traditional continuous improvement. While this makes it popular with CEO's many quality practitioners are uncomfortable with the focus on results since it violates several of Deming's points. The third fundamental nuance of Six Sigma is the way it is organized around creating champions, black belts, green belts and in some situations, yellow belts. Fourth, Six Sigma and lean production have been combined into an approach termed
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