Referring to Exercise 12.3, use Bonferroni simultaneous confidence intervals with \(\alpha=0.06\) to compare the mean number of electrodes coated by the experiment under the 3 different alternatives.

Data From Exercise 12.3

Data From Theorem 12.1

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12.3 Three alternatives are suggested for electroplating to reduce dissolved metal cations so that they form a coherent metal coating on an electrode. In an exper- iment conducted to compare the manufacturing yields using the three alternatives, experimenters record the number of electrodes coated before the metal cations are exhausted. Suppose the data are Alternative Z Alternative X Alternative Y 321 327 319 325 324 331 318 326 328 330 329 322