Independent random samples were selected from two quantitative populations, with sample sizes, means, and variances given State the null and alternative hypotheses used to test for a difference in the two population means. Calculate the necessary test statistic, the rejection region with a 5 .05, and draw the appropriate conclusion.

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2. Population 1 2 Sample Size 64 64 Sample Mean 3.9 5.1 Sample Variance 9.83 12.67