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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
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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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