Question: Independent random samples of size n1 = n2 = 500 were selected from each of two populations. The mean and standard deviations for the two

Independent random samples of size n1 = n2 = 500 were selected from each of two populations. The mean and standard deviations for the two samples were 1 = 125.2, 2 = 123.7, s1 = 5.6, and s2 = 6.8.
a. Find a point estimate for the difference in the two population means. Calculate the margin of error.
b. Based on the results in part a, can you conclude that there is a difference in the two population means? Explain.

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