Mathematics, 20.03.2020 12:06 Geo777
According to Chemical Engineering, an important property of fiber is its water absorbency. The average percent absorbency of 25 randomly selected pieces of cotton fiber was found to be 20 with a standard deviation of 1.5. A random sample of 25 pieces of acetate yielded an average percent of 12 with a standard deviation of 1.25. Is there strong evidence that the populationJ. mean percent absorbency is significantly higher for cotton fiber than for acetate
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According to Chemical Engineering, an important property of fiber is its water absorbency. The avera...
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