maxiryonmarianaana maxiryonmarianaana

04-01-2023
Mathematics

Answered

In order to compare the means of two populations, independent random samples of 225 observations are selected from each population with the following results. Sample 1 Sample 2 overbar(x)1 = 478 overbar(x)2 = 481 s1 = 14.2 s2 = 11.2 Test the null hypothesis H0: (μ1 - μ2) = 0 against the alternative hypothesis Ha: (μ1 - μ2) ≠ 0 usingα = .10. Give the significance level, and interpret the result.

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