t檢驗(yàn)-SPSS 有答案

1、.1.23.4.5.6.7.8.9.10.檢驗(yàn)結(jié)果：檢驗(yàn)結(jié)果：t=7.003 ，P=0.0000.05,差異具有統(tǒng)計(jì)學(xué)意義差異具有統(tǒng)計(jì)學(xué)意義 。因?yàn)?。因?yàn)槁詺夤苎谆颊咭阴Ｄ憠A酯酶水平為慢性氣管炎患者乙酰膽堿酯酶水平為2.1085，正常人為，正常人為1.44，可認(rèn)，可認(rèn)為患者乙酰膽堿水平高于正常人。為患者乙酰膽堿水平高于正常人。11.12.13.14.15.16.17.18.19.變量standard 、new 的P分別為：0.919 和0.942,可認(rèn)為近似正態(tài)分布。（P值，.表示符合正態(tài)性，.表示不符合正態(tài)性）20.21.22.Paired Samples Statistics12.041

2、7122.39752.692108.7917122.50870.72420STANDARDNEWPair 1MeanNStd. DeviationStd. ErrorMean單變量的統(tǒng)計(jì)描述Paired Samples Correlations12.485.110STANDARD & NEWPair 1NCorrelationSig.兩變量的相關(guān)系數(shù),本例為0.485,P=0.110,無(wú)相關(guān)關(guān)系23.統(tǒng)計(jì)量 t雙側(cè)配對(duì)t檢驗(yàn)的P值差異有統(tǒng)計(jì)學(xué)意義配對(duì)變量差值的t檢驗(yàn)結(jié)果24.25.26. 患者編號(hào)患者編號(hào) X X1 1 健康者編號(hào)健康者編號(hào) X X2 2 1 4.73 1 2.34 2

3、 6.40 2 2.50 3 2.60 3 1.98 4 3.24 4 1.67 5 6.53 5 1.98 6 5.18 6 3.60 7 5.58 7 2.33 8 3.73 8 3.73 9 4.32 9 4.57 10 5.78 10 4.82 11 3.73 11 5.78 12 4.17 13 4.14 27.28.建立數(shù)據(jù)庫(kù)29.文件分割文件分割選擇DataSplit FileCompare groups把“Group”調(diào)入“Groups Based on”下，OK。30.AnalyzeNonparametric Tests1-Sample K-S將變量GS移入Test Vari

4、able List框內(nèi)；在Test Distribution中激活“Normal”。單擊OK按鈕。則得出輸出結(jié)果。31.One-Sample Kolmogorov-Smirnov Test1215.20834.02164.121.121-.090.419.9951310.84624.22150.204.204-.112.735.652NMeanStd. DeviationNormal Parametersa,bAbsolutePositiveNegativeMost ExtremeDifferencesKolmogorov-Smirnov ZAsymp. Sig. (2-tailed)NMea

5、nStd. DeviationNormal Parametersa,bAbsolutePositiveNegativeMost ExtremeDifferencesKolmogorov-Smirnov ZAsymp. Sig. (2-tailed)GROUP1.002.00GSTest distribution is Normal.a. Calculated from data.b. 32.33.DataSplit File 34.Analyze all cases, do not create groupsOK?；氐絊PSS主畫(huà)面35.選擇AnalyzeCompare MeansIndepe

6、ndent-sample T Test的主對(duì)話框。36.37.38.Group Statistics1215.20834.021641.160951310.84624.221501.17083GROUP1.002.00GSNMeanStd. DeviationStd. ErrorMeanIndependent Samples Test.283.6002.64023.0154.36221.65217.944417.779952.64622.972.0144.36221.64883.951087.77328Equal variances assumedEqual variances notassu

7、medGSFSig.Levenes Test forEquality of VariancestdfSig. (2-tailed)MeanDifferenceStd. ErrorDifferenceLowerUpper95% ConfidenceInterval of theDifferencet-test for Equality of Means方差齊性檢驗(yàn)兩個(gè)獨(dú)立樣本均數(shù)的t檢驗(yàn) 雙側(cè)的P值,該差異具有統(tǒng)計(jì)學(xué)意義.39.40.41.42.G Gr ro ou up p S St ta at ti is st ti ic cs s127.1842.85984.24821127.1108.7

8、8008.22519組別1.002.00血清膽固醇NMeanStd. DeviationStd. ErrorMeanIndependent Samples TestIndependent Samples Test.344.564.21922.829.07333.33514-.62171.76837.21921.795.829.07333.33514-.62209.76875Equal variancesassumedEqual variancesnot assumed血清膽固醇FSig.Levenes Test forEquality of VariancestdfSig. (2-tailed

9、)MeanDifferenceStd. ErrorDifferenceLowerUpper95% ConfidenceInterval of theDifferencet-test for Equality of Means43.Group StatisticsGroup Statistics127.1842.85984.24821126.6250.92709.26763實(shí)驗(yàn)前后.001.00血清膽固醇NMeanStd. DeviationStd. ErrorMeanIndependent Samples TestIndependent Samples Test.057.8141.53222.

10、140.55917.36501-.197821.316161.53221.876.140.55917.36501-.198071.31641Equal variancesassumedEqual variancesnot assumed血清膽固醇FSig.Levenes Test forEquality of VariancestdfSig. (2-tailed)MeanDifferenceStd. ErrorDifferenceLowerUpper95% ConfidenceInterval of theDifferencet-test for Equality of Means44.Gro

11、up StatisticsGroup Statistics127.1108.78008.22519126.9642.74990.21648實(shí)驗(yàn)前后.001.00血清膽固醇NMeanStd. DeviationStd. ErrorMeanI In nd de ep pe en nd de en nt t S Sa am mp pl le es s T Te es st t.061.808.47022.643.14667.31237-.50114.79447.47021.966.643.14667.31237-.50120.79453Equal variancesassumedEqual vari

12、ancesnot assumed血清膽固醇FSig.Levenes Test forEquality of VariancestdfSig. (2-tailed)MeanDifferenceStd. ErrorDifferenceLowerUpper95% ConfidenceInterval of theDifferencet-test for Equality of Means以上對(duì)甲乙組，分別用以上對(duì)甲乙組，分別用T-test是錯(cuò)誤的！是錯(cuò)誤的！應(yīng)該使用配對(duì)應(yīng)該使用配對(duì)T-test！45.O On ne e- -S Sa am mp pl le e K Ko ol lm mo og go

13、 or ro ov v- -S Sm mi ir rn no ov v T Te es st t12127.18426.6250.85984.92709.195.167.195.157-.106-.167.676.578.751.892NMeanStd. DeviationNormal Parametersa,bAbsolutePositiveNegativeMost ExtremeDifferencesKolmogorov-Smirnov ZAsymp. Sig. (2-tailed)實(shí)驗(yàn)前試驗(yàn)后Test distribution is Normal.a. Calculated from d

14、ata.b. P Pa ai ir re ed d S Sa am mp pl le es s T Te es st t.55917.61095.17637.17099.947353.17011.009實(shí)驗(yàn)前 - 試驗(yàn)后Pair 1MeanStd. DeviationStd. ErrorMeanLowerUpper95% ConfidenceInterval of theDifferencePaired DifferencestdfSig. (2-tailed)46.One-Sample Kolmogorov-Smirnov TestOne-Sample Kolmogorov-Smirnov

15、Test12127.11086.9642.78008.74990.306.268.306.268-.181-.2061.062.929.210.354NMeanStd. DeviationNormal Parametersa,bAbsolutePositiveNegativeMost ExtremeDifferencesKolmogorov-Smirnov ZAsymp. Sig. (2-tailed)實(shí)驗(yàn)前試驗(yàn)后Test distribution is Normal.a. Calculated from data.b. P Pa ai ir re ed d S Sa am mp pl le

16、es s T Te es st t.14667.21073.06083.01278.280562.41111.035實(shí)驗(yàn)前 - 試驗(yàn)后Pair 1MeanStd. DeviationStd. ErrorMeanLowerUpper95% ConfidenceInterval of theDifferencePaired DifferencestdfSig. (2-tailed)47.G Gr ro ou up p S St ta at ti is st ti ic cs s12-.5592.61095.1763712-.1467.21073.06083組別1.002.00降膽NMeanStd. DeviationStd. ErrorMeanIndependent Samples TestIndependent Samples Test5.072.035-2.21122.038-.41250.18656-.79941-.02559-2.21