Question

The statistical definition of Six Sigma allows for 3.4 defects per million. This is achieved by what Cpk index value

Answer 1

2

Explanation:

In general, the higher the Cpk, the better. A Cpk value less than 1.0 is considered poor and the process is not capable. A value between 1.0 and 1.33 is considered barely capable, and a value greater than 1.33 is considered capable. But, you should aim for a Cpk value of 2.00 or higher where possible.