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Model
Factor
\( \widehat{b} \)
S.E. (\( \widehat{b} \) )
T value
p value
VIF
Unweighted regression
Temperature
0.774
0.315
2.46
0.018*
4.03
Wind velocity
0.057
0.315
0.18
0.858
1.29
Sunlight hours
−0.080
0.057
−1.39
0.171
3.30
Relative humidity
−0.788
0.278
−2.83
0.007*
4.36
Rainfall
0.020
0.068
0.29
0.773
1.55
Constant
55.500
22.600
2.46
0.018*
–
R-squared = 59.47%, Adjusted R-squared = 55.06%, S = 9.22
Weighted regression
Temperature
1.002
0.182
5.49
<0.001*
3.45
Wind velocity
0.332
0.189
1.76
0.086
2.00
Sunlight hours
−0.045
0.031
−1.46
0.152
3.57
Relative humidity
−0.656
0.196
−3.35
0.002*
3.44
Rainfall
0.045
0.031
1.46
0.151
3.16
Constant
29.5
14.700
2.00
0.051
–
R-squared = 79.00%, Adjusted R-squared = 76.72%, S = 1.27
\( \widehat{\boldsymbol{b}} \) coefficient, S.E. (
\( \widehat{\boldsymbol{b}} \)
) standard error of coefficient, VIF variance inflation factor
*p value <0.05 is significant
