只知道均值和标准差的t检验SPSS程序.doc

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1、分组N±s1组309.36±0.832组307.58±0.64文件®新建®语法（改变以下需要改的数值均值和标准差）运行®全部结果如下n1mean1sd1n2mean2sd2fvaluefptvaluepttcdfpc309.93307.5800.64002.1116.0224.0000.00008.636042.9107.0000所用程序Numberofcasesread:1Numberofcaseslisted:1DATALISTFREE/n1mean1sd1n2mean2sd2fvaluefptvaluepttcdfpc.B

2、EGINDATA.309.360.93307.580.640000000.ENDDATA.COMPUTEfvalue=sd1**2/sd2**2.DOIFsd1GEsd2.COMPUTEfp=1-CDF.F(fvalue,n1,n2).elseifsd1LTsd2.COMPUTEfp=1-CDF.F(fvalue,n1,n2).ENDIF.COMPUTEtvalue=ABS((mean1-mean2)/sqrt((((n1-1)*sd1**2+(n2-1)*sd2**2)/(n2+na-2))*(1/n1+1/n2))).COM

3、PUTEpt=CDF.T(-tavlue,n1+n2-2)*2.COMPUTEtc=ABS((mean1-mean2)/sqrt(sd1**2/n1+sd2**2/n2)).COMPUTEdf=(((sd1/sqrt(n1))**2+(sd2/sqrt(n2))**2)**2)/((sd1/sqrt(n1)**4/(n1-1)+(sd2/sqrt(n2))**4/(n2-1))).COMPUTEpc=CDF.T(-tc,df)*2.DOIFmean2>mean1.COMPUTEtvalue=-tvalue.ENDIF.FORMA

4、TSn1(f8.0)mean1n2(f8.0)mean2sd2fvaluefptvaluepttcdfpc(f8.4).LISTn1mean1sd1n2mean2sd2fvaluefptvaluepttcdfpc.