Obtain the 90% rank-sum CI for 1 2 using the data in Exercise 25.

Obtain the 90% rank-sum CI for µ₁ − µ₂ using the data in Exercise 25.

Data From Exercise 25

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In an experiment to compare the bond strength of two different adhesives, each adhesive was used in five bondings of two surfaces, and the force necessary to separate the surfaces was determined for each bonding. For adhesive 1, the resulting val- ues were 229, 286, 245, 299, and 250, whereas the adhesive 2 observations were 213, 179, 163, 247, and 225. Let μ; denote the true average bond strength of adhesive type i. Use the Wilcoxon rank-sum test at level .05 to test Ho: M₁=₂ versus H: με > μ2.