ANEXOS
113
Breusch-Pagan / Cook-Weisberg test for heteroskedasticity
Ho: Constant variance
Variables: fitted values of PAlS
chi2(1) =
18.21
Prob > chi2 =
0.0000
White’s test for Ho: homoskedasticity
against Ha: unrestricted heteroskedasticity
chi2(2) = 1 3.53
Prob > chi2 =
0.0012
Cameron &Trivedi’s decomposition of IM-test
Source
|
Chi2
df
p
----------------------------- + -----------------------------------------------------------
Heteroskedasticity
|
13.53
2
0.0012
Skewness
|
1.83
1
0.1760
Kurtosis
+ 4.10
1
0.0428
-------------------------------------------------------------------------------------------------
Total
|
9.47
4
0.0006
-------------------------------------------------------------------------------------------------
0
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AAlS
PAlS
Fitted values
Función de Producción de la Alfalfa
