AATS for the X̄ Chart with Variable Parameters

Abstract

A Fortran computer program is given for the computation of the adjusted average time to signal, or AATS, for adaptive X̄ charts with one, two, or all three design parameters variable: the sample size, n, the sampling interval, h, and the factor k used in determining the width of the action limits. The program calculates the threshold limit to switch the adaptive design parameters and also provides the in-control average time to signal, or ATS.

• Adaptive Control Schemes
• Adjusted Average Time to Signal
• Quality Control
• Statistical Process Control
• Variable Parameters Control Charts

Additional information

Notes on contributors

Antonio F. B. Costa

Dr. Costa is an Assistant Professor in the Department of Production. He is a Member of ASQ. His email address is [email protected].