Consider the chemical etch rate data in Exercise 10-23.(a)
Chapter 10, Problem 44E(choose chapter or problem)
Go Tutorial Consider the chemical etch rate data in Exercise 10 -23.
(a) Use the Wilcoxon rank-sum test to investigate the claim that the mean etch rate is the same for both solutions. If \(\alpha=0.05\), what are your conclusions?
(b) Use the normal approximation for the Wilcoxon rank-sum test. Assume that \(\alpha=0.05\). Find the approximate P -value for this test.
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