Tolerance interval
Also know as Tolerance limits.
Usage of tolerance intervals
Tolerance intervals are related to engineering tolerances limits.
Typically, engineering tolerance limits define the maximum and minimum values
for a product to work correctly.
Engineering tolerance limits may be specified via Geometric Dimensioning and Tolerancing.
Tolerance intervals are fundamental to control charts of various types.
Statistical tolerance intervals (or limits) are derived from process data.
These intervals quantify the variation manifest by the process.
They define the capability of the process by specifiying minumum and
maximum values.
These values bound a region that contains a certain proportion of the total population
with a specified probablity or confidence.
External References
See , 2004 July 17.
In particular
Section 7.2.6.3 -
See "Quality Control Handbook", Juran.
