Source | SS df MS Number of obs = 159

---------+------------------------------ F( 3, 155) = 8.75

Model | 30.3399226 3 10.1133075 Prob > F = 0.0000

Residual | 79.049538 155 1.15515831 R-squared = 0.1449

---------+------------------------------ Adj R-squared = 0.1283

Total | 209.38946 158 1.32524975 Root MSE = 1.0748

------------------------------------------------------------------------------

lninc | Coef. Std. Err. t P>|t|

---------+--------------------------------------------------------------------

primary | -.885891 .1975417 -4.485 0.000

secondar | .9238779 .3027603 3.052 0.003

cropland | .0737762 .0394247 1.871 0.063

cons | 8.906202 .171654 51.885 0.000

------------------------------------------------------------------------------