Call: lm(formula = y ~ x) Residuals: Min 1Q Median 3Q Max -0.10253 -0.08982 -0.00142 -0.00141 0.57084 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.102530 0.007619 13.456 <0.0000000000000002 *** xNA -0.018839 0.027655 -0.681 0.496 xnon-Annex I -0.101102 0.009889 -10.223 <0.0000000000000002 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 0.1275 on 709 degrees of freedom Multiple R-squared: 0.131, Adjusted R-squared: 0.1285 F-statistic: 53.42 on 2 and 709 DF, p-value: < 0.00000000000000022