Six Sigma refers to achieving a process variability so small that the design specifications represent ___ standard deviations above and below the process mean.

six

Step-by-step explanation:

Six sigma is defined as the method or a set of techniques that provides the provides the organization tools and techniques to improve the capability and and be efficient of their business process. It is a concept of process improvement.

It refers to the achieving of a process variability very small so that the design specification represents six standard deviations which is above as well as below the process mean.

there are three terms in the expression

Step-by-step explanation: