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The use of Control Charts with Composite materials

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Now that the problem area has been identified,<br />

a traditional X-bar chart shows the problem.<br />

X-bar Chart for Fill Compression RTD<br />

Strength<br />

107<br />

105<br />

103<br />

101<br />

99<br />

UCL = 105.52<br />

CTR = 100.72<br />

LCL = 95.91<br />

97<br />

95<br />

0 10 20 30 40 50<br />

Subgroup

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