正交试验的方差分析为负值,怎么回事儿啊?

IT计算

我的正交试验是4因素3水平,其中Se平方和的误差为负值,多易导致最后的结果F值夜为负的!表1.1正交试验设计及数据处理表Awd!&
Table1.1 The design of orthogonal test and data processingC4p6
序号物料比A!V
提取时间B9xgO)x
(min)超声温度Cx^QZA
(℃)超声次数D吸光度Abi1
<lX,v
111110.420;d(E
212220.370^}Gt
313330.573}^MW
421230.393f=VB
522310.522Cj
623120.515t3j
731320.513mO.';!E
832130.347!W
933210.325)yh
K11.3631.3261.2821.267Vc1ZS
K21.4301.2931.0881.398[
K31.1851.4131.6081.313TQ
k10.4540.4420.4270.422@R(
k20.4770.4310.3630.4667ys<*Y
k30.3950.4710.5360.438+W
R0.0820.0400.1730.044m8F^!O
Q j1.7691.8091.8051.761Yq
S j0.0110.0510.0470.003.M4
序号物料比Aj-
提取时间B:p>
(min)超声温度C7q
(℃)超声次数D吸光度Am
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111110.420}k9B
212220.370"&
313330.573,)
421230.393]2
522310.5227w 2Mp
623120.515"G
731320.513; I`
832130.347X
933210.325nOX&T
K11.3631.3261.2821.267yg
K21.4301.2931.0881.398!~
K31.1851.4131.6081.313bwKG
k10.4540.4420.4270.422o*pXxQ
k20.4770.4310.3630.466+mk
k30.3950.4710.5360.438?1_Uo
R0.0820.0400.1730.044~57 k
Q j1.7691.8091.8051.761KU
S j0.0110.0510.0470.003}
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表1.2 正交试验方差分析表6C
Table1.2 The analyzing table of orthogonal testfabk
因素偏差平方和自由度f均方VF值F临界值显著性&emJ
物料比A0.01120.0060.250,
提取时间B0.05120.0261.083u4
超声温度C0.04720.0241.000}5
超声次数D0.00320.0020.0836Iw1v
误差0.04700.024-2Mn(1