Question: The article Tibiofemoral Cartilage Thickness Distribution and its Correlation with Anthropometric Variables (A. Connolly, D. FitzPatrick, et al., Journal of Engineering in Medicine, 2008:2939) reports

The article “Tibiofemoral Cartilage Thickness Distribution and its Correlation with Anthropometric Variables” (A. Connolly, D. FitzPatrick, et al., Journal of Engineering in Medicine, 2008:29–39) reports that in a sample of 11 men, the average volume of femoral cartilage (located in the knee) was 18.7 cm³ with a standard deviation of 3.3 cm³ and the average volume in a sample of 9 women was 11.2 cm³ with a standard deviation of 2.4 cm². Find a 95% confidence interval for the difference in mean femoral cartilage volume between men and women.

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