Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.02392 -0.02167 -0.01115  0.00305  0.53573 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.023916   0.001917  12.478 < 0.0000000000000002 ***
xYes        -0.012490   0.003607  -3.463             0.000567 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.04333 on 710 degrees of freedom
Multiple R-squared:  0.01661,	Adjusted R-squared:  0.01522 
F-statistic: 11.99 on 1 and 710 DF,  p-value: 0.000567