Question: Consider the etch rate data in Exercise 10-21. Suppose that if one population variance is twice as large as the other, we want to detect

Consider the etch rate data in Exercise 10-21. Suppose that if one population variance is twice as large as the other, we want to detect this with probability at least 0.90 (using a = 0.05). Are the sample sizes n1 = n2 = 10 adequate?

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