在eview6.0里，有一个group有三列数，我想检验这三列数的均值差异性，采用如下操作：
打开这个group — view — test of equality — mean — ok.出现结果如下：
问：这个方法合理吗？如何解释，有无相关文献？多谢

Test for Equality of Means Between Series   
Date: 10/23/10   Time: 17:51   
Sample: 1 496   
Included observations: 496   
   
Method  df Value Probability
   
Anova F-test  (2, 419) 2.578991 0.0771
Welch F-test*  (2, 157.574) 6.117211 0.0028
   
*Test allows for unequal cell variances   
   
Analysis of Variance   
   
Source of Variation  df Sum of Sq. Mean Sq.
   
Between  2 0.005069 0.002534
Within  419 0.411732 0.000983
   
Total  421 0.416801 0.000990
   
   
Category Statistics   
   
    Std. Err.
Variable Count Mean Std. Dev. of Mean
SER03 46 0.016372 0.011642 0.001717
SER13 66 0.018763 0.015571 0.001917
SER23 310 0.025509 0.035521 0.002017
All 422 0.023458 0.031465 0.001532