Biostatistics Quiz
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REGRESSION & MODELING
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A regression of heart rate (Y) on exercise duration in minutes (X) gives Y^=72+2.5X\hat{Y} = 72 + 2.5X with standard error of the slope SE(β1^)=0.8SE(\hat{\beta_1}) = 0.8. For a 95% confidence interval of the slope (assuming df = 28), which t-value should be used and what does the slope coefficient represent in context?
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