1)comparison among means,平均數(shù)比較2)weighted average to weighted average basis,按加權(quán)平均數(shù)比較3)comparison of average value,平均值比較4)comparison among means for trend,平均趨勢(shì)比較5)multiple comparisons of means,均數(shù)多重比較6)multiple comparison of mean,均數(shù)的多重比較
