Question: Independent random samples selected from two normal populations produced the following sample means and standard deviations: a. Assuming equal variances, conduct the test H0: 1m1

Independent random samples selected from two normal populations produced the following sample means and standard deviations: Sample 1 = 12 x = 3.4 = $1 4.8 Sample 2

a. Assuming equal variances, conduct the test H0: 1m1 - m22 = 0 against Ha: 1m1 - m22 0 using a = .05.

b. Find and interpret the 95% confidence interval for 1m1 - m22.

Sample 1 = 12 x = 3.4 = $1 4.8 Sample 2 n2 = 17 X2 = 5.9 $2 = 3.4

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