1234567Ⅰ42.945.446.442.841.546.547Ⅱ42.543.242.243.141.642.9Ⅲ19.920.321.524.423.721.521.8方差分析:单因素方差分析SUMMARY组观测数求和平均方差42.96269.644.933335.08666742.5521342.60.46519.97156.6122.372862.18249方差分析差异源SSdfMSFP-valueFcrit组间1992.2272996.1137369.95151.72E-133.68232组内40.38828152.692552总计2032.61617Mean品种-22.06-44.6444.64Ⅰ22.582.0642.58Ⅱ20.5222.06Ⅲtα=0.05,dfe=212.08LSD0.051.44tα=0.01,dfe=212.41LSD0.011.66Mse4.14S²d0.48Sd0.69tα=0.05,dfe=21(2.08)LSD0.05(1.44),则在α(0.05)水平上不显著。LSD法显著性检验6。某茶场3种不同品种的茶树共21株,调查两年生冠幅生长量,得结果如下表。试问3中茶树冠幅生长量是否有显著差异?茶树品种编号823.41tα=0.05,dfe=21(2.08)LSD0.05(1.44),则在α(0.05)水平上不显著。编号123456Ⅰ42.945.446.442.841.546.5Ⅱ42.543.242.243.141.642.9Ⅲ19.920.321.524.423.721.56。某茶场3种不同品种的茶树共21株,调查两年生冠幅生长量,得结果如下表。试问3中茶树冠幅生长量是否有显著差异?茶树品种编号78Mean品种4744.64Ⅰ42.58Ⅱ21.823.4122.06Ⅲ编号