Reconsider the experiment from Problem 3-6. Analyze the residuals and draw conclusions about model adequacy. Problem 3-6.

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Reconsider the experiment from Problem 3-6. Analyze the residuals and draw conclusions about model adequacy.


Problem 3-6.

A manufacturer of television sets is interested in the effect on tube conductivity of four different types of coating for color picture tubes. The following conductivity data are obtained:

Coating Type Conductivity 1 143 141 150 146 152 149 137 143 3 134 136 132 127 4 129 127 132 129

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