Download - 第十一章 分类变量资料 的统计推断
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n,
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11.1368562.50%5
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n p1-pnpn(1-p)5 ,
- n50npn(1p)
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un npn(1p)5 p
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uu
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1 20%()651524831.6%
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u=3.58 > u0.05=1. 64, P
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unpn(1-p)5
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2 1
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1
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n1=100p1=14%n2=120p2=25%pc=20%1pc=80% u 2.031>u0.05=1.96p < 0.05=0.05H0H1
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2
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2 1.2.3.
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2 1
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1 2
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2 41011-1
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11-1 (%)4019023017.395013018027.789032041021.95
(50.49) (179.51) (39.51) (140.49)
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2 2
2 P196 111
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2 H02 22H0P
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2 P
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2 1.n40T5
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1. H0 1=2 H1 1 2 =0.052. T11= 50.49 T12=179.51 T21= 39.51 T22=140.49
- =(2-1)(2-1)=13.P =1 2 0.01
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2.
Aaba+bBcdc+da+cb+da+b + c+d
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2
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3.11T5n402T1n40
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11.6
11-2 % 13.76107.24119.091310.241719.763043.3314274134.15
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X22.812X2 2.812 X2 0.05,1=3.84 P0.05X2 X2 =4.197P 0.05
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3
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3
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3
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X22.74 X2 0.05,1=3.84 P0.05X2 X2 =4.06P 0.05
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2
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211.7 55ITALAT RF 11-3
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11-3 RF
ITALAT+-+31a12b43-1c11d12322355
- H0 B=CH1 BC =0.05 =120.005
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3 28+-4
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4
- 1 H0B=C H1BC =0.05 22 b=9c=1b+c
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3P X24.90X23.84P0.05=0.05H0H1
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2RC =R-1C-1
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nAnRnCA
=R-1C-1
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11-4
%126997111.69126666781.77296656944.18357177524.6588274728353.10
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H0 H1 =0.05
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= 3 2 P < 0.005=0.05H0H1
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11-5
753525123418129611869331466623711539445180843
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H0 H1 =0.05
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= 3 2 P > 0.05=0.05H0
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1.1
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1
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X2
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P =3121=2X20.05,25. 99=0.05H0H1
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2.2
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1
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X2
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P =2141=3 X2 0.05,3=7.81=0.05H0
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