Call:
lm(formula = het ~ es)

Residuals:
    Min      1Q  Median      3Q     Max 
-14.449 -10.703  -9.266  -8.596  72.962 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)
(Intercept)  7.32409    6.93530   1.056    0.297
es           0.07296    0.14483   0.504    0.617

Residual standard error: 22.14 on 45 degrees of freedom
Multiple R-squared:  0.005607,	Adjusted R-squared:  -0.01649 
F-statistic: 0.2538 on 1 and 45 DF,  p-value: 0.6169