<p>An attribute control chart is designed for the time truncated life test when the quality characteristic follows the new Lomax Rayleigh Distribution (NLRD). Control chart coefficients and performance of the proposed control chart are determined for different shift constants. Average run lengths for different shift constants and control chart limits are tabulated for reference. Time truncated attribute control charts performance in monitoring non-conforming units following NLRD distribution is validated in this study. Simulated data results and real data example reveals that the new proposed attribute control chart for NLRD shows better results in identifying even small shifts.</p>

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A time truncated attribute control chart to monitor urgent physiological investigations turnaround times

  • Naga Saritha Kolli,
  • Gadde Srinivasa Rao,
  • Kanaparthi Rosaiah

摘要

An attribute control chart is designed for the time truncated life test when the quality characteristic follows the new Lomax Rayleigh Distribution (NLRD). Control chart coefficients and performance of the proposed control chart are determined for different shift constants. Average run lengths for different shift constants and control chart limits are tabulated for reference. Time truncated attribute control charts performance in monitoring non-conforming units following NLRD distribution is validated in this study. Simulated data results and real data example reveals that the new proposed attribute control chart for NLRD shows better results in identifying even small shifts.