112
METODOLOGÍA PARA ESTIMAR EL USO EFICIENTE DEL AGUA EN ACTIVIDADES AGRICOLAS
. reg lPEsB lAEsB
Source
|
SS
df
MS
Number of obs = 29
------------- +
------------------------------
F( 1, 27)
=
87.19
Model
|
23.9799458
1
23.9799458
Prob > F
= 0.0000
Residual
|
7.42625636
27
.275046532
R-squared = 0.7635
------------- +
------------------------------
Adj R-squared = 0.5923
Total
|
31.4062022
28
1.12165008
Root MSE = .52445
---------------------------------------------------------------------------------------------------------------------------------------------
lPEsB |
Coef.
Std. Err.
t
P>|t|
[95% Conf. Interval]
------------- + -------------------------------------------------------------------------------------------------------------------------
lAEsB |
.8907217
.095394
9.34
0.000
.6949894
.1.086454
_cons
|
.5352296
.6958677
0.77
0.448
-.892573
1.963032
-----------------------------------------------------------------------------------------------------------------------------------------------
Producción de Alfalfa con uso de agua superficial.
. reg PAlS AAlS
Source
|
SS
df
MS
Number of obs = 38
------------- +
------------------------------
F( 1, 36)
=
56.59
Model
|
512239273
1
512239273
Prob > F
= 0.0000
Residual
|
325849174
36
9051365.95
R-squared = 0.6112
------------- +
------------------------------
Adj R-squared = 0.6004
Total
|
838088447
37
22651039.1
Root MSE = 3008.5
---------------------------------------------------------------------------------------------------------------------------------------------
PAlS
|
Coef.
Std. Err.
t
P>|t|
[95% Conf. Interval]
------------- + -------------------------------------------------------------------------------------------------------------------------
AAlS
|
3.369064
.4478472
7.52
0.000
2.460788
4.27734
_cons
|
508.9201
644.8003
0.79
0.448
-798.7954
1816.636
-----------------------------------------------------------------------------------------------------------------------------------------------
Prueba de Heteroscedasticidad en la producción de Alfalfa con uso de agua superficial. Como
puede observarse por el valor de 18.21, tenemos que la varianza no es constante.
