Aortic stenosis refers to a narrowing of the aortic valvein the heart. The article “Correlation Analysis ofStenotic Aortic Valve Flow Patterns Using PhaseContrast MRI” (Annals of Biomed. Engr., 2005:878–887) gave the following data on aortic root diameter(cm) and gender for a sample of patients having variousdegrees 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 forthe two genders.b. Calculate a 10% trimmed mean for each of the twosamples, and compare to other measures of center(for the male sample, the interpolation method mentionedin Section 1.3 must be used).

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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Aortic stenosis refers to a narrowing of the aortic valve
in the heart. The article “Correlation Analysis of
Stenotic Aortic Valve Flow Patterns Using Phase
Contrast MRI” (Annals of Biomed. Engr., 2005:
878–887) gave the following data on aortic root diameter
(cm) and gender for a sample of 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 3.5
F: 3.8 2.6 3.2 3.0 4.3 3.5 3.1 3.1 3.2 3.0
a. Compare and contrast the diameter observations for
the two genders.
b. Calculate a 10% trimmed mean for each of the two
samples, and compare to other measures of center
(for the male sample, the interpolation method mentioned
in Section 1.3 must be used).

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