The Process Capability Measures Cp and Cpk Differ Because

Multiple Choice

The process capability measures Cp and Cpk differ because:

A) only one ensures the process mean is centered within the limits.
B) Cp values above 1 indicate a capable process,while Cpk values above 2 indicate a capable process.
C) They do not differ: both are identical.
D) Cp values for a given process will always be greater than or equal to Cpk values.
E) Both A and D are correct.