Robust Control Charts for Monitoring Process Mean of Phase-I Multivariate Individual Observations

<table>Probability of signal for <svg height="15.8375" id="M202" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 17.775 15.8375" width="17.775" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,-0,0,-.012,11.388,7.613)"><path d="M412 140l28 -9q0 -2 -35 -131h-373v23q112 112 161 170q59 70 92 127t33 115q0 63 -31 98t-86 35q-75 0 -137 -93l-22 20l57 81q55 59 135 59q69 0 118.5 -46.5t49.5 -122.5q0 -62 -29.5 -114t-102.5 -130l-141 -149h186q42 0 58.5 10.5t38.5 56.5z" id="x32"></path></g>
</svg> control chart with different estimation methods for <svg height="15.2875" id="M203" style="vertical-align:-3.50804pt" version="1.1" viewbox="0 0 99.3125 15.2875" width="99.3125" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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Journal of Quality and Reliability Engineering

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Figure 4

Figure 4: Robust Control Charts for Monitoring Process Mean of Phase-I Multivariate Individual Observations 