Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04908 -0.04907 -0.03854 -0.00166  0.64468 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.049077   0.004700  10.443 < 0.0000000000000002 ***
xYes        -0.047414   0.008845  -5.361          0.000000112 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.1062 on 710 degrees of freedom
Multiple R-squared:  0.0389,	Adjusted R-squared:  0.03754 
F-statistic: 28.74 on 1 and 710 DF,  p-value: 0.0000001123