《预防医学》 > 第三十一章 实验性研究——临床试验

附表31-3 配对比较(t检验)时所需样本含量

δ单侧:α=0.005
双侧:α=0.01
α=0.01
α=0.02
α=0.025
α=0.05
α=αδ
1-β=0.990.950.90.80.50.990.950.90.80.50.990.950.90.80.50.990.950.90.80.5 
0.05                     0.05
0.10                     0.10
0.15                    1220.15
0.20          139    99    700.20
0.25     110    90   12864  139101450.25
0.30    13478   11563  1199045 1229771320.30
0.35   1259958  1098547 109886734 907252240.35
0.40  115977745 10185663711784685126101705540190.40
0.45  9277623711081685330936754412180554133150.45
0.50  756351309066554325765444341865453627130.50
0.55 100635342267555463621634537281551383022110.55
0.60 8353453622634739311853383224134632261990.60
0.65 7146393120554134271646332721123928221780.65
0.70 6140342817473530241440292419103424191580.70
0.75 533630251642312721133526211693021171370.75
0.80 473227221437282419123122191592719151260.80
0.85 412924201333252117112821171382417141160.85
0.90 372622181229231916102519161272115131050.90
0.95 3424201711272118149231714117191411950.95
1.00 3122191610251916139211613106181311851.00
1.1 28191614921161412818131196151197 1.1
1.2 24161412818141210715121085131086 1.2
1.3 21151311816131196141097 11876 1.3
1.4 1813121071411109612987 10875 1.4
1.5 16121197131098611876 976  1.5
1.6 15111086121097510876 866  1.6
1.7 131098611987 9765 865  1.7
1.8 121098610877 876  76   1.8
1.9 12987610876 866  75   1.9
2.0 1188759776 765  6    2.0
2.1 10877 8766 76   6    2.1
2.2 10876 8765 76   6    2.2
2.3 9776 866  65   5    2.3
2.4 89776 766  6         2.4
2.5 8766 766  6         2.5
3.0 7665 655  5         3.0
3.5 655  5              3.5
4.0 6                   4.0