11-37. Random samples of sizes nX = nY = 5 were taken from normal distributions having unknown...

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11-37. Random samples of sizes nX = nY = 5 were taken from normal distributions having unknown variances σ2X and σ2Y

, respectively. Find:

(a) A 95% confidence interval for σ2X

(b) A 99% confidence interval for σ2Y

(c) A 95% confidence interval for σ2X

/σ2Y Sample 1: 3.7, 8.6, 4.2, 5.5, 6.2 Sample 2: 2.2, 1.89, 2.6, 2.82, 3.1

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