Aortic stenosis refers to a narrowing of the aortic valve inthe heart. The paper

Chapter 1, Problem 67

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Aortic stenosis refers to a narrowing of the aortic valve inthe heart. The paper Correlation Analysis of StenoticAortic Valve Flow Patterns Using Phase Contrast MRI(Annals of Biomed. Engr., 2005: 878887) gave the followingdata on aortic root diameter (cm) and gender for a sampleof patients having various degrees of aortic stenosis:M: 3.7 3.4 3.7 4.0 3.9 3.8 3.4 3.6 3.1 4.0 3.4 3.8 3.5F: 3.8 2.6 3.2 3.0 4.3 3.5 3.1 3.1 3.2 3.0a. Compare and contrast the diameter observations for thetwo genders.b. Calculate a 10% trimmed mean for each of the two samples,and compare to other measures of center (for themale sample, the interpolation method mentioned inSection 1.3 must be used).

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