Independent random samples of n1 = 233 and n2 = 312 are selected from two populations and

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Independent random samples of n1 = 233 and n2 = 312 are selected from two populations and used to test the hypothesis H0: 1m1 - m22 = 0 against the alternative Ha: 1m1 - m22 ≠ 0.

a. The two-tailed p-value of the test is .012. Interpret this result.

b. If the alternative hypothesis had been Ha: 1m1 - m22 6 0, how would the p-value change? Interpret the p-value for this one-tailed test.

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Statistics For Business And Economics

ISBN: 9781292413396

14th Global Edition

Authors: James McClave, P. Benson, Terry Sincich

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