Survey weighted GLM

Survey-weighted Generalized Linear Model

Economydoctor. Dairy farms data: production, economy, care and health. Data: ProAgria and Faba (luke.fi/economydoctor).

Dependent variable:
 Profitability ratio

Estimate

St. Error

t value

p value

(Intercept)

-1.99063

0.607

-3.28

0.001

Pure preventive hoof trimming (%)

-0.00753

0.004

-2.15

0.033

Pure preventive hoof trimming (%) 2

0.00004

0.000

2.04

0.042

Labor (per cow)

0.01045

0.005

2.27

0.024

Labor (per cow) ²

-0.00003

0.000

-1.80

0.073

Conventional barn

-0.19562

0.099

-1.98

0.049

Milk yield (ECM kg/year)

0.00022

0.000

5.21

< 0.001

Capital (per cow)

0.00003

0.000

1.33

0.185

Capital (per cow) ²

-0.00000

0.000

-2.74

0.007

F(8, 212)= 6.00, p < .001, the degrees of freedom for the t test is 212.