iSixSigma

Z Score

Definition of Z Score:

A measure of the distance in standard deviations of a sample from the mean. Calculated as (X – X bar) / sigma

Related Articles:
« Back to Dictionary Index

iSixSigma Recommends

  • Certified Lean Six Sigma Black Belt Assessment Exam

    Interested in assessing your knowledge of Lean Six Sigma? Preparing for certifications? Testing your students and trainees? This test is useful for anyone interested in assessing their knowledge of Lean Six Sigma on the Black Belt level. It can be used in preparation for the ASQ Certified Six Sigma Black Belt (CSSBB) exam or for any number of other certifications, including at private company (GE, Motorola, etc.) certifications.

  • Root Cause Analysis Course Training Slides

    Training your company has just become easier! With this course you will be able to train anyone in your company on the proper techniques for achieving proper resolution of any type of problem, whether it be a transactional process, manufacturing issue, medical procedure, or personnel issue.