Question: The 95% confidence interval for the difference between the two population means is: The following information was obtained from independent random samples. Assume normally distributed

The 95% confidence interval for the difference between the two population means is:

The following information was obtained from independent random samples.

Assume normally distributed populations with equal variances.

Sample 1 Sample 2

Sample Mean 45 42

Sample Variance 85 90

Sample Size 10 12

-4.86 to 10.86

-2.65 to 8.65

-5.372 to 11.372

-5 to 3

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