Empirical distribution function as a tool in quality control

Authors: Jevremović Vesna, Avdović Atif

Keywords: quality control; X-bar charts; empirical distribution function; Kolmogorovs distribution; control band

Abstract:

In this paper, we are introducing two new methods for Quality Control. Those methods rely on using the Empirical distribution function of a given sample (or several samples). The first method we use for one sample, i.e. we can determine if each given sample is adequate. We use the second method to determine whether several samples are “in control” or not. For the sample to be “in control” state, the normal distribution is required.