
------------------------------------------------------------------------
                              SepalWidth          SepalLength     Counts
                          ------------------   ----------------   ------
                               (1)       (2)     (3)        (4)      (5)
------------------------------------------------------------------------
SepalLength               0.378***    -0.313                            
                           (0.066)   (0.239)                            
PetalWidth                0.626***                     0.972***         
                           (0.123)                      (0.052)         
------------------------------------------------------------------------
Species                        Yes       Yes                            
------------------------------------------------------------------------
Estimator                      OLS        IV     OLS        OLS       NL
------------------------------------------------------------------------
N                              150       150     150        150        9
R2                           0.635     0.080   0.014      0.707         
Adjusted R2                  0.622     0.055   0.007      0.703         
Within-R2                    0.391    -0.535                            
F                           30.836    17.468                            
F-test p value               0.000     0.000                            
First-stage F statistic               19.962                            
First-stage p value                    0.000                            
Degrees of Freedom             145       145                            
------------------------------------------------------------------------

