Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.03395 -0.03105 -0.01938 -0.00294  0.46633 

Coefficients:
             Estimate Std. Error t value  Pr(>|t|)    
(Intercept) -0.006610   0.007453  -0.887     0.375    
x            0.044874   0.010611   4.229 0.0000269 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06174 on 630 degrees of freedom
  (80 observations deleted due to missingness)
Multiple R-squared:  0.0276,	Adjusted R-squared:  0.02606 
F-statistic: 17.88 on 1 and 630 DF,  p-value: 0.00002695