Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.028730 -0.024779 -0.009802  0.009469  0.301882 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.028731   0.001583  18.146 < 0.0000000000000002 ***
xYes        -0.013104   0.002774  -4.724           0.00000279 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03469 on 710 degrees of freedom
Multiple R-squared:  0.03048,	Adjusted R-squared:  0.02911 
F-statistic: 22.32 on 1 and 710 DF,  p-value: 0.000002786