Which Capability index is referred to as Entitlement?

The Capability Index referred to as "Entitlement" is typically associated with the Cpk index, which measures the capability of a process to produce output within specified limits. It reflects how well a process can meet customer specifications and requirements, taking into account both the process mean and variability. A high Cpk value indicates that a process is well-centered and has low variability, thereby ensuring that the output consistently meets the desired standards.