Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.01656 -0.01651 -0.00883  0.00259  0.35201 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.016564   0.001273  13.015 < 0.0000000000000002 ***
xYes        -0.007733   0.002230  -3.468             0.000555 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.02788 on 710 degrees of freedom
Multiple R-squared:  0.01666,	Adjusted R-squared:  0.01528 
F-statistic: 12.03 on 1 and 710 DF,  p-value: 0.0005551