Question: A3Q4JMP data set, which contains columns labeled error and source (1 - conventional, 2- on-site). Obtain confidence intervals for the difference of means and for


A3Q4JMP data set, which contains columns labeled "error" and "source" (1 - conventional, 2- on-site). Obtain confidence intervals for the difference of means and for the ratio of standard deviations. Do the intervals indicate systematic differences between the on-site and conventional labs
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