F distributions. The F statistic for equality of standard deviations based onsamples of
Chapter 0, Problem 19.18(choose chapter or problem)
F distributions. The F statistic for equality of standard deviations based onsamples of sizes n1 = 21 and n2 = 16 takes the value F = 2.78.(a) Is this significant evidence of unequal population standard deviations at the5% level? At the 1% level?(b) Between which two values obtained from Table D does the P-value of the testfall?
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