Chapter 8 practice questions
Which "Quality of Product" dimension would you be assessing when asking the question, "Does the product possess the features you are looking for?"
Features
In the process capability ratio, if the upper and lower specification limits are greater than the process variability, you can be pretty confident that the process can achieve your desired quality level.
True
Quality has more influence on a company than any other value-added dimensions.
True
With respect to control chart logic, processes that are designed to produce to a specific quality number is called?
target
By investing in prevention and appraisal costs, your real goas is what?
Identify and eliminate the causes of problems before they occur
Which of the following can be done to improve your process capability ration?
Change the specifications Modify the process Outsource All of the above
A control chart that measures attributes measures what?
Characteristic that has a discrete value and can be counted
With respect to control chart logic, controls limits based on the level of confidence you want to have the process perform at is called?
Confidence
Which "Quality of Product" dimension would you be assessing when asking the question, "Does the product conform to design specifications?"
Conformance
To improve the process capability ratio, you may need to find a supplier that operates a better or different process that can produce to your quality requirements. This is called?
outsource
The total-cost-of quality framework breaks out quality costs into which four categories
prevention costs, appraisal costs, Internal failure costs, external failure costs
Which of the following is not one of the steps in W. Edward Deming's PDCA cycle?
procrastinate
Which "Quality of Product" dimension would you be assessing when asking the question, "How long will the product perform or last, and under what conditions?"
Durability
Which "Quality of Service" dimension would you be assessing when asking the question, "How well does the service provider provide caring, individualized attention to its customers?"
Empathy
Quality must be defined by engineers. They are the only one who know what it means to be fit for use. TrueFalse
False
The Ishikawa cause-and-effect diagram is also known as the
Fishbone diagram
Which of the following are potential sources of variation in the Ishikawa cause-and-effect diagram?
Materials, measurements and environment
Which of the following tools would you use to identify the most-likely cause of a quality problem?
Pareto chart
Which "Quality of Service" dimension would you be assessing when asking the question, "How dependably can the service provider provide promised service?"
Reliability
Which "Quality of Product" dimension would you be assessing when asking the question, "Is the product relatively easy to maintain and repair?"
Serviceability
If you want to be six-sigma certified, what do you need to do?
Show you are an effective project manager and have participated in quality-improvement projects
The tool that monitors processes and keeps them production high-quality products is?
Statistical process control
If you perform a careful process capability analysis, you really don't need to perform statistical process control.
False
The goal for the size of the Santa on a Christmas Santa cup is 3.5 cm (T) with an acceptable tolerance of ± 0.9 cm. The grand mean of the size of the Santa from the samples that were taken is 3.4 cm (m) and the standard deviation is 0.28 cm. What is CPk? (rounded to three decimals)
0.952
Which "Quality of Product" dimension would you be assessing when asking the question, "Does the product look, sounds, taste, or smell the way it should?"
Aesthetics
Which of the following helps you make priorities visible by showing the frequency at which each cause occurs?
Pareto diagram
Which of the following are potential sources of variation in the Ishikawa cause-and-effect diagram?
People Methods Machines Materials All of the above
Which "Quality of Product" dimension would you be assessing when asking the question, "For any dimension that cannot be observed directly, does the product seem like a high-quality product?"
Perception
What are the four stems to E. Edward Deming's four-step continuous improvement processes?
Plan, Do, Check, Act
To achieve quality at the source, you need to focus on which of the following?
Prevention Personal responsibility Standardization All of the above
A control chart that is constructed using a range is called a/an...
R-chart
With respect to control chart logic, processes performed include some variation is called?
Variability
Which of the following is not a dimension of quality?
Traceability
How is the statistical concept of six sigma used?
Uses tools to help you identify which type of variation is present in your processes as well as how to address that variation to improve your process
Statistical process control charts measure what?
Variables and attributes
What does a process capability analysis allow you to do?
Verify that your process is capable of performing at your desired quality level
Which quality guru is responsible for the four step—Plan, Do, Check, Act (PDCA)—cycle that is used by almost every global manufacturer today? Shigeo Shingo Armand V. Feigenbaum Joseph M. Juran W. Edward Deming
W. Edward Deming
What is guardbanding?
When engineers set product specifications tighter than they need to be
Which of the following is a definition of Quality?
Whether or not a product or service lives up to customer expectations AND Conformance to specifications
Six Sigma is built on which very critical fact? a. Mannerisms are inherent in human acts during the purchasing process b. It takes time for cash to flow back into the company after it has been spent c. Capacity should be understood and defined for each level in the organization d. Variability in a process produces defects, errors, and waste
d. Variability in a process produces defects, errors, and waste
As a rule of thumb, a Cpk of less than 1.5 indicates that your process can meet your desired quality levels.
false
In the process capability ratio, six sigma captures almost 88% of the process variability. TrueFalse
false
In the process capability ratio, the farther off center the process is operating, the more likely it is to produce unacceptable parts. This adjustment is represented by which symbol?
k
The core objective in six sigma is to reduce variation in processes
true
You need to evaluate services quality a little differently than you evaluate product quality.
true
A control chart that is constructed using a mean is called a/an...
x̄ chart
Under what circumstances would you use process capability analysis?
you want to verify that the process is capable of consistently producing good outputs