Refer to Example 14 concerning suspended solids in effluent from a treatment plant. Take the natural logarithm
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Refer to Example 14 concerning suspended solids in effluent from a treatment plant. Take the natural logarithm of each of the measurements and then take the difference.
(a) Construct a 95% confidence interval for \(\mu_{D}\).
(b) Conduct a level \(\alpha=0.05\) level test of \(H_{0}: \mu_{D}=\) 0 against a two-sided alternative. Verify that the conclusion is the same as that obtained from the confidence interval.
(c) Make a dot diagram of these differences and decide if the transformation has essentially removed the outliers.
Data From Example 14
Data From Example 13
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Related Book For
Probability And Statistics For Engineers
ISBN: 9780134435688
9th Global Edition
Authors: Richard Johnson, Irwin Miller, John Freund
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