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1、001:0:,HH001:0:,HH(0,1)/XZNn(1)/Xtt nSn211()1niiSXXn01:165,165HH0.036/XtSn0.025(14)2.14t0.0250.036(14)ttXxSSn NMeanStd.DeviationStd.Error Mean身高15164.937.1261.840 Test Value=165 tdfSig.(2-tailed)Mean Difference95%Confidence Interval of the Difference LowerUpper身高-.03614.972-.07-4.013.88012112HH:;:21
2、2221221212221122()()(0,1)/XXZNnn212222121212122212()()(2)/XXtt nnSnSn222112212(1)(1)2nSnSSnn21S22S22121212221122()()/XXtSnSn22212122222121212()()()11SSnndfSSnnnn211222(1,1)SFF nnS2222012112HH:;:,0221FF男生男生12345678身高175174168164173169170166女生女生1234567身高158165156152156160168221112159.69,169.88,3.907,5
3、.559XXSS21220.70282SFS0.0250.975(7,6)5.695,(7,6)0.195FF12287213dfnn22222112212(1)(1)7 3.9076 5.55922.482213nSnSSnn 12122212()()159.69 169.884.31511/22.482()87XXtSnSn 0.025(13)2.16t0.0254.315(13)tt 性别NMeanStd.DeviationStd.Error Mean身高07159.295.5592.101 18169.883.9071.381 Levenes Test for Equality of
4、Variancest-test for Equality of Means FSig.tdfSig.(2-tailed)MeanDifferenceStd.Error Difference95%Confidence Interval of the DifferenceLower身身高高Equal variancesassumed.843.375-4.31513.001-10.592.454-15.891Equal variances not assumed -4.21110.609.002-10.592.515-16.149x 1y 1D1=x 1-y 1x 2y 2D2=x2-y 2M MM
5、 MM Mx iy iDi=xi-y iM MM MM Mx ny nDn=xn-y n012112HH:;:D12()(1)/Dtt nSn211()1niiSDDn样本差值计算表样本差值计算表训练前训练前训练后训练后差值差值Di94.5101110103.59788.596.5101104116.58589.5101.5968680.58793.5931029.511.58.57.51189.57.51114.5合计合计98.5198.59.8510niiDDn21()43.5252.199110 1niiDDSn12()9.85 8.51.94132.19910DtSn0100:,:HH
6、0100:,:HH假设假设当当t0时时t0时时P值（双侧）值（双侧）/21-P值（双侧）值（双侧）/21-P值（双侧）值（双侧）/2P值（双侧）值（双侧）/2 MeanNStd.DeviationStd.Error MeanPair 1X092.7500107.962592.51799 训练后的体重91.400107.10562.2470 NCorrelationSig.Pair 1X0&训练后的体重10.964.0004546订购次数订购次数本地本地连锁连锁116.822.0211.715.2315.618.7416.715.6517.520.8618.119.5714.117.0821.819.5913.916.51020.824.047写出假设检验的步骤，并给出假设检验的结论。写出假设检验的步骤，并给出假设检验的结论。
《均值的比较检验》PPT课件
