The process is capable of producing output within specifications.
Is the Cp greater than 2.0?
Yes No
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The process is not capable of producing within specification limits. Look for ways to improve the process by reducing common cause variation. You may also need to evaluate the specification limits to determine if they are current.
Perform capability analysis to learn if the process is capable of producing output that meets specification requirements. For more information, select:
Capability analysis: Can a process produce output within spec?
Is the Cp less than 1.0?
If you are not sure what shape you are looking at, select: Study the shape.
Normal distributions are symmetrical and create a bell-shaped curve. If your process does not have a normal distribution, you will need to determine why not. If the process is bound by 0 on one side, it may be normally distributed, but not appear that way. For more information on non-symmetrical distributions, select: Study the shape
The distribution appears to be normal. Have you calculated capability indices?
You may wish to create a histogram with a curve to determine if your process has a normal distribution. Perform capability analysis to learn if the process is capable of producing output that meets specification requirements. For more information, select:
Does the histogram have a bell shape?
Yes No Not Sure