Question: 50. If X1, . . . , Xn is a sample from a normal population with variance 2 x , and Y1, . . .

50. If X1, . . . , Xn is a sample from a normal population with variance σ2 x , and Y1, . . . , Yn is an independent sample from normal population with variance σ2 y , develop a significance level α test of

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