Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.03316 -0.03313 -0.01581  0.00710  0.34782 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.033161   0.002294  14.459 < 0.0000000000000002 ***
xYes        -0.017348   0.004317  -4.019            0.0000647 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.05185 on 710 degrees of freedom
Multiple R-squared:  0.02224,	Adjusted R-squared:  0.02087 
F-statistic: 16.15 on 1 and 710 DF,  p-value: 0.00006472