In a capability study, a process capability index uses both the process _______ and _________ to determine whether the process is "capable".
Explanation
Answer: B - In a capability study, a process capability index uses both the process variability and specifications.
Key Takeaway: In a capability study, a process capability index uses both the process variability which measures its inherent instability, and specifications which measure its activities. A capability study of a printing machine, for example, measures its variability and output under certain conditions. The goal of such a study is to find out of the printing machine can meet production expectations.