What is the residual variance around the regression line? Cardiology Coronary flow reserve (CFR) was estimated in
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Cardiology
Coronary flow reserve (CFR) was estimated in 31 patients with hypertension. Investigators measured the myocardial velocity ratio (MVR) following high-dose dobutamine, and Data set available obtained the statistical data shown in Table 11.30.
Table 11.30: Descriptive statistics for CFR and MVR for 31 hypertensive patients
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Mean sd 2.0 0.4 0.2 CFR MVR 0.82
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