异方差检验 本研究用 White 检验模型判断是否存在异方差，结果显示

This study tested whether Heteroscedasticity heteroscedastic with White test model determination showed, P = 0. 3577> 0. 1, so 1% significance accepted the null hypothesis that the random error does not exist in the horizontal heteroscedastic.

Heterosparism Test The White test model used in this study to determine whether there is an heterother difference, and the results show that P is 0. 357 7 s 0. 1, so accept the original assumption that there is no heterogeneous in the 1% significant level.

Heteroscedasticity test this study uses white test model to judge whether there is heteroscedasticity. The results show that P = 0.357 7 > 0.1, so we accept the original hypothesis that there is no Heteroscedasticity in random error term at 1% significance level.<br>