Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04885 -0.04884 -0.03867 -0.00200  0.64491 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.048855   0.004701  10.393 < 0.0000000000000002 ***
xYes        -0.046852   0.008885  -5.273          0.000000178 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.1064 on 709 degrees of freedom
  (1 observation deleted due to missingness)
Multiple R-squared:  0.03774,	Adjusted R-squared:  0.03638 
F-statistic:  27.8 on 1 and 709 DF,  p-value: 0.0000001785