Statistics How To

Cpk

Process Capability Analysis >

Cpk stands for process capability index, and refers to the capability a particular process has of achieving output within certain specifications. In manufacturing, it describes the ability of a manufacturer to produce a product that meets the consumers expectations, within a tolerance zone.

The equation for Cpk is [minimum(mean – LSL, USL – mean)] / (0.5*NT), where NT stands for natural tolerance, LSL for lower specification limit and USL for upper specification limit.

------------------------------------------------------------------------------

Need help with a homework or test question? With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you'd rather get 1:1 study help, Chegg Tutors offers 30 minutes of free tutoring to new users, so you can try them out before committing to a subscription.

If you prefer an online interactive environment to learn R and statistics, this free R Tutorial by Datacamp is a great way to get started. If you're are somewhat comfortable with R and are interested in going deeper into Statistics, try this Statistics with R track.

Comments? Need to post a correction? Please post a comment on our Facebook page.

Check out our updated Privacy policy and Cookie Policy

Cpk was last modified: September 11th, 2018 by Stephanie