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Let s1 = 0.035 and s2 = 0.062 be the standard deviations of samples of sizes...

  1. Let s1 = 0.035 and s2 = 0.062 be the standard deviations of samples of sizes n1 = 16 and n2 = 25 from two independent normal populations with unknown standard deviations σ1 and σ2. The 90% one-sided lower bound on the ratio is

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The 90% one-sided lower bound of the ratio between two standard deviations is = = 0.6724.

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