The forced expiratory volume (FEV, measure in liters) is a primary indicator of

Question

The forced expiratory volume (FEV, measure in liters) is a primary indicator of lung function and corresponds to the volume of air that can forcibly be blown out in the first second after full inspiration. We would like to use our data to analyze FEV in adolescent girls. Here is the R output for the relationship between FEV (y) and height (x) in girls age 11 and older:

What is the regression equation for the effect of height on FEV in adolescent girls? (round your answers to 2 decimal places)

FEV = ----------- + ------------*height

Coefficients: Estimate Std Error t Value P(> |t|) (Intercept) 6.871108 0.592019 11.61 <2e 16 Height 0.155284 0.009001 17.25 <2e 16      Residual standard error: 0.5155 on 262 degrees of freedom Multiple R-Squared = 0.5318,      Adjusted R-Squared = 0.53

Explanation / Answer

FEV = 6.871108 + 0.155284*height

Variation explaind by model = R-squared = 53.18%

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