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greatsupercat木蟲 (正式寫手)
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[求助]
求助統(tǒng)計軟件SPASS的F值求法
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我有兩組數(shù)據(jù) 9.59 9.6 9.6 9.59 9.58 9.6 9.58 9.58 9.59 9.58 9.59 9.6 9.59 9.6 9.6 9.58 9.6 9.58 9.59 9.6 9.58 9.6 9.6 9.61 9.58 9.58 9.59 9.59 9.6 9.59 9.6 9.58 9.6 9.59 9.58 9.58 9.59 9.58 9.68 9.6 9.58 9.59 9.6 9.6 9.58 9.59 9.58 9.58 9.6 9.58 9.6 9.58 9.6 9.58 9.58 9.6 9.58 9.6 9.6 9.6 9.58 9.58 9.58 9.58 怎樣用spass求F值,摸索了一天,也沒弄明白。 F=(Q1/V1 )/(Q2/V2) Q1為組間方差和 q2是組內(nèi)方差和 顯然EXCEL上的F檢驗(yàn)值是不對的,所以只好用這個軟件了;蛘哂衅渌浖梢哉_F值的,請求推薦一下。 我試驗(yàn)了好幾個,要么不會用,要么軟件只是簡單的計算第一組S1除以第二組S2,根本不是F值 [ Last edited by greatsupercat on 2010-8-13 at 16:27 ] |
木蟲 (正式寫手)
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SAS ?? The TTEST Procedure Variable: x (x) group N Mean Std Dev Std Err Minimum Maximum 1 32 9.5928 0.0182 0.00321 9.5800 9.6800 2 32 9.5897 0.00967 0.00171 9.5800 9.6100 Diff (1-2) 0.00312 0.0146 0.00364 group Method Mean 95% CL Mean Std Dev 95% CL Std Dev 1 9.5928 9.5863 9.5994 0.0182 0.0146 0.0242 2 9.5897 9.5862 9.5932 0.00967 0.00775 0.0129 Diff (1-2) Pooled 0.00312 -0.00415 0.0104 0.0146 0.0124 0.0177 Diff (1-2) Satterthwaite 0.00312 -0.00420 0.0104 Method Variances DF t Value Pr > |t| Pooled Equal 62 0.86 0.3939 Satterthwaite Unequal 47.231 0.86 0.3949 Equality of Variances Method Num DF Den DF F Value Pr > F Folded F 31 31 3.54 0.0007 |

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