
Call:
lm(formula = gh_impact ~ type)

Residuals:
   Min     1Q Median     3Q    Max 
    -1     -1     -1      0    183 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)    
(Intercept)    1.856      0.004     451   <2e-16 ***
typeUSR       -0.246      0.004     -56   <2e-16 ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 2 on 1064711 degrees of freedom
Multiple R-squared:  0.003,	Adjusted R-squared:  0.003 
F-statistic: 3e+03 on 1 and 1064711 DF,  p-value: <2e-16

