In assessing how the water absorption properties of cotton fabric differ with roller pressures of 10 pounds

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In assessing how the water absorption properties of cotton fabric differ with roller pressures of 10 pounds per square inch and 20 pounds per square inch, an experimenter suspects that different fabric samples may have different absorption properties. Therefore a paired experimental design is adopted whereby 14 samples are split in half, with one half being examined at one pressure and the other half being examined at the other pressure. DS 9.6.2 contains the % pickup values obtained. Do the water absorption properties of cotton fabric depend upon the roller pressure?
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