means each item sampled is classified as defective or not defective based on quality standards.
could be used together with process control and variable measurement as part of a quality control system.
utilizes a discrete scale of measurement.
a, b, and c.
Assignable cause variation is also referred as special cause variation.
An observation outside the control limits is an example of a special cause of variation.
Common cause variation can be eliminated from the process by removing the potential causes.
The control limits will include 99.74% of the population under the normal probability distribution assuming that the process is in control.
shows causes and effects of quality problems.
shows the prevalence of the various types of defects that have been found.
is not useful when first studying a quality problem.
has both upper and lower specification limits.
identifies common causes of quality defects .
is often used in conjunction with a Pareto chart.
is also called a fishbone diagram.
has all of the above features.
Cpk is a better measure of process capability than Cp.
Cp is exactly equal to Cpk when the mean is centered in the specification limits.
Given the same process, Cpk is always less than or equal to Cp.
All of the above are accurate.