Quality 4
A non-normally distributed population reveals _______.
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A process capability studybis done to determine that the process can _______ make on-specification product.
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All but one of the followimg are quality tools. Mark the one wrong answer.
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All of the thinga listed below would indicate a process is no longer in statistical control except one.
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Some advantages of SPC charts are listed below.
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______ depicts where the values are centered.
Central tendency
To reveal how many times an event happens you would use a _______.
Check sheet
Control chart help distinguish between special and ______ causes of variation in a process.
Common
If the product specification range is the same as the common variation in the process, the process is doing what it should do, but a small shift in _____ direction would result in the production of off-specification product.
Either
When employees record data and use statistical methods to convert the data to information, they learn what to imprive and what to ______.
Eliminate
A universal force called ______ acts on every process.
Entropy
Management is responsible for building two types of quality into systems: Operational quality and _______ quality.
Environmental
Quality tools help individuals and teams to continuosly improve their work processes by making improvements based on data and _______.
Facts
High-tech equipment in the hands of low-tech employees is a condition that leads to ______.
Failure
A company with good statistical tools and empowered employess does not need a performance system.
False
A company with good statistical tools will have a good quality system.
False
A process capability value of 1.0 reveals the process has extended capability to produce quality product.
False
Control charts reveal when an abnormal change in a process has occurred due to a normal cause, and can help identify and correct the change.
False
The information an X chart reveals is variation in subgroup ranges.
False
The information and R chart reveals is variation in subgroup averages.
False
You would always do a process capability study of a unit that has assignable cases interfering with the finished product quality.
False
The ________ tool reveals potential trouble spots.
Flowcharts
A diagnostic tool that gives a clear picture of data distribution that might otherwise be difficult to visualize is the _______.
Histograms
To continuosly monitor performance with charts and the mathematical probabilities of the normal distribution you would use:
Histograms
Statistical evidence tells us that in a stable process, 90 percent to 95 percent of the process variation is:
Inherent in the system and can't be controlled by the people working the system.
The engineering concept of variation has the object just ________ specifications.
Meeting
Four input factors in processes that contribute to random fluctuations and inconsistencies are: materials, manpower, machines and _______.
Methods
An operator is wroking on a unit that stays in statistical control; however, some off-specification product is occasionally produced. Can the operator help improve the process.
No
SPC places the responsibility for quality squarely in the hands of _______.
Operators
To rank information from most serious to least serious you would use a __________.
Pareto chart
A pie chart is used to graphically represent ________ data.
Percentage
______ sampling techniques are extremely important to process units.
Proper
One of Shewart's approaches to process improvement is to:
Reduce normal variation Remove assignable causes
For a sample to truly represent the whole population it has to be ______.
Representative
Purposes of data collection are: (1) To analyze the problem, (2) To minimize or remove the problem and (3) To ________.
Reveal a problem exists.
Monitoring and minimizing the important variables in a process is the goal of _____.
SPC
To reveal whether a relationship exists between two variables in a process, you would use a _________.
Scatter diagram
Using a systematic way for individuals and teams to learn about processes is called the ______ approach.
Scientific
The ______ reveals how spread out the values are.
Spread
In normal distribution, the centerline is the average and the spread is the ______.
Standard deviation
The average value of a normal distribution is always at the center, and there is a quantity called _________.
Standard deviation
______ is data that are more objective than general statements.
Statistics
One of the two known facts about a process that is in statistical control is _______.
The process is doinf what is was designed to do. Operators are not able to improve the process.
Every process always has variation.
True
If you react to quickly to normal variations in a process it will make things better.
True
The cause-and-effect diagram is used to help people understand the complex relationship between and effect and its causes.
True
Another term used that refers to samples for variable data obtained by measuring variable such as flow rate, temperature, or pressure in a vessel is:
Variable data
______ is the change or deviation, in form, condition, appearance or extent from q usual state, or from an assumed standard.
Variation
The first major application of statistical process control involved the _______ manufacturing facilities in the United States.
Wartime munition
