Optimum EWMA control chart

This application is designed to: 1.- To calculate the ARL of a EWMA control chart given its parameters and makes a comparison versus the standard Shewhart (Xbar) control chart. 2.- To find the best parameters (optimization) to reach a given in-control ARL and to minimize the out-of-control ARL for a given shift. 3.- To plot an ARL chart, showing a comparison of performance versus the standard Xbar control chart. In this application d = (m1 - m0) / sigma0. And r = sigma1 / sigma0 The available languages are Spanish and English. There is a twin application for iOS / iPhone available in its store.