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Confidence interval for the mean difference in heart size

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Reference no: EM131319092

Researchers are interested in determining if men and women's hearts tend to be different sizes. In a sample of 12 males, the mean diameter of the heart was 13.21 cm with a standard deviation of 1.05. Among 9 females, the mean diameter of the heart was found to be 11 cm with a standard deviation of 1.01. Construct a 95% confidence interval for the mean difference in heart size.

Reference no: EM131319092

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