Independent random samples were selected from each of two normally distributed populations, n1 = 16 from population
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Independent random samples were selected from each of two normally distributed populations, n1 = 16 from population 1 and n2 = 25 from population 2. The means and variances for the two samples are shown in the following table. LO3 Sample 1 Sample 2 n1 = 16 n2 = 25 x1 = 22.5 x2 = 28.2 s1 2
= 2.87 s2 2
= 9.85
a. Test the null hypothesis H0: s1 2
= s2 2 against the alternative hypothesis Ha: s1 2 s2 2 . Use a = .05.
b. Find and interpret the p-value of the test.
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