Question

Independent random samples selected from two normal populations produced the following sample means and standard deviations:
Sample 1 .... Sample 2
n1 = 17 ...... n2 = 12
x̄1 = 5.4 ...... x̄2 = 7.9
s1 = 3.4 ..... s2 = 4.8
a. Assuming equal variances, conduct the test H0: (µ1 - µ2) = 0 against Ha: (µ1 - µ2) = 0 using α = .05.
b. Find and interpret the 95% confidence interval for (µ1 - µ2).


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  • CreatedMay 20, 2015
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