Question: Independent random samples were selected from populations 1 and 2. The sample sizes, means, and variances are as follows: a. Find a 95% confidence interval

Independent random samples were selected from populations 1 and 2. The sample sizes, means, and variances are as follows:

Independent random samples were selected from populations 1 and 2.

a. Find a 95% confidence interval for estimating the difference in the population means (µ1 - µ2).
b. Based on the confidence interval in part a, can you conclude that there is a difference in the means for the two populations? Explain.

Population Sample Size Sample Mean Sample Variance 35 12.7 49 7.4 4.14 1.38

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