1.Wooldridge test for autocorrelation in panel data
H0: no first-order autocorrelation
    F(  1,      74) =      5.032
           Prob > F =      0.0279
2.Modified Wald test for groupwise heteroskedasticity
in cross-sectional time-series FGLS regression model

H0: sigma(i)^2 = sigma^2 for all i

chi2 (75)  =   19304.39
Prob>chi2 =      0.0000


3. Frees' test of cross sectional independence =     0.528
|--------------------------------------------------------|
  Critical values from Frees' Q distribution
                      alpha = 0.10 :   0.3583
                      alpha = 0.05 :   0.4923
                      alpha = 0.01 :   0.7678

请问这些表示什么意思，我这数据是否有问题？我是初学者，懂得不是很多，希望遇见大神指点。