The Fig. 10 shows that the linear correlation coefficient value between air temperature and solar
radiation is 0.7780. It is shows that a strong linear relationship between solar radiation and air
temperature. This is because the solar radiation and air temperature is directly proportional. The analysis
of variance for this model 6054 0 2
.R = ; that is, about 61 percent of the variability in air temperature is
accounted for by the straight-line fit to solar radiation. These results show that the model without outliers
is the best fitted model compares to the earliest fitted data contained outliers.