Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04162 -0.04160 -0.02475 -0.00506  0.67406 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.041617   0.004370   9.522 < 0.0000000000000002 ***
xYes        -0.034545   0.007656  -4.512           0.00000752 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.09575 on 710 degrees of freedom
Multiple R-squared:  0.02787,	Adjusted R-squared:  0.0265 
F-statistic: 20.36 on 1 and 710 DF,  p-value: 0.000007515