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In: Statistics and Probability

independent random samples selected from two normal populations produced the following sample means and standard deviations....

independent random samples selected from two normal populations produced the following sample means and standard deviations. sample 1: n1= 17, x1= 5.4, s1= 3.4

sample 2: n2 =12, x2 = 7.9, s2= 4.8

a. assuming equal variances, conduct the test ho: (m1-m2) is equal to 0, against the ha: (m1-m2) isn't equal to 0 using alpha = .05

b. find and interpret the 95% confidence interval (m1-m2).

Solutions

Expert Solution

A and B)

We are 95% confident that difference in means will lie between -5.617 and 0.617

orchestra answered 2 years ago
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