The difference between Ppk and Cpk—Why the same data results in 1.04 and 1.46

When I reported, "The process capability was Cpk 1.04," the client replied like this."That is Ppk, isn't it? Please also provide the Cpk."It is the same 50 pieces of data. When recalculated, the Cpk ...

Is it okay to judge process capability solely by Cp and Cpk? - How to think about quality data that is not normally distributed

When you learn about quality control in the manufacturing industry, you encounter the term "process capability index" at a ...