Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.03088 -0.03087 -0.02948 -0.00127  0.60877 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.030876   0.003519   8.774 < 0.0000000000000002 ***
xYes        -0.029597   0.006623  -4.469           0.00000916 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.07955 on 710 degrees of freedom
Multiple R-squared:  0.02736,	Adjusted R-squared:  0.02599 
F-statistic: 19.97 on 1 and 710 DF,  p-value: 0.00000916