程序代写案例-B-11A

B-11A P P E N D I X B
Degrees of
Freedom 2.995
2
.990
2
.975
2
.950
2
.900
2
.100
2
.0
50
2
.025
2
.010
2
.005
1 0.000039 0.000157 0.000982 0.00393 0.0158 2.71 3.84 5.02 6.63 7.88
2 0.0100 0.0201 0.0506 0.103 0.211 4.61 5.99 7.38 9.21 10.6
3 0.072 0.115 0.216 0.352 0.584 6.25 7.81 9.35 11.3 12.8
4 0.207 0.297 0.484 0.711 1.06 7.78 9.49 11.1 13.3 14.9
5 0.412 0.554 0.831 1.15 1.61 9.24 11.1 12.8 15.1 16.7
6 0.676 0.872 1.24 1.64 2.20 10.6 12.6 14.4 16.8 18.5
7 0.989 1.24 1.69 2.17 2.83 12.0 14.1 16.0 18.5 20.3
8 1.34 1.65 2.18 2.73 3.49 13.4 15.5 17.5 20.1 22.0
9 1.73 2.09 2.70 3.33 4.17 14.7 16.9 19.0 21.7 23.6
10 2.16 2.56 3.25 3.94 4.87 16.0 18.3 20.5 23.2 25.2
11 2.60 3.05 3.82 4.57 5.58 17.3 19.7 21.9 24.7 26.8
12 3.07 3.57 4.40 5.23 6.30 18.5 21.0 23.3 26.2 28.3
13 3.57 4.11 5.01 5.89 7.04 19.8 22.4 24.7 27.7 29.8
14 4.07 4.66 5.63 6.57 7.79 21.1 23.7 26.1 29.1 31.3
15 4.60 5.23 6.26 7.26 8.55 22.3 25.0 27.5 30.6 32.8
16 5.14 5.81 6.91 7.96 9.31 23.5 26.3 28.8 32.0 34.3
17 5.70 6.41 7.56 8.67 10.1 24.8 27.6 30.2 33.4 35.7
18 6.26 7.01 8.23 9.39 10.9 26.0 28.9 31.5 34.8 37.2
19 6.84 7.63 8.91 10.1 11.7 27.2 30.1 32.9 36.2 38.6
20 7.43 8.26 9.59 10.9 12.4 28.4 31.4 34.2 37.6 40.0
21 8.03 8.90 10.3 11.6 13.2 29.6 32.7 35.5 38.9 41.4
22 8.64 9.54 11.0 12.3 14.0 30.8 33.9 36.8 40.3 42.8
23 9.26 10.2 11.7 13.1 14.8 32.0 35.2 38.1 41.6 44.2
24 9.89 10.9 12.4 13.8 15.7 33.2 36.4 39.4 43.0 45.6
25 10.5 11.5 13.1 14.6 16.5 34.4 37.7 40.6 44.3 46.9
26 11.2 12.2 13.8 15.4 17.3 35.6 38.9 41.9 45.6 48.3
27 11.8 12.9 14.6 16.2 18.1 36.7 40.1 43.2 47.0 49.6
28 12.5 13.6 15.3 16.9 18.9 37.9 41.3 44.5 48.3 51.0
29 13.1 14.3 16.0 17.7 19.8 39.1 42.6 45.7 49.6 52.3
30 13.8 15.0 16.8 18.5 20.6 40.3 43.8 47.0 50.9 53.7
40 20.7 22.2 24.4 26.5 29.1 51.8 55.8 59.3 63.7 66.8
50 28.0 29.7 32.4 34.8 37.7 63.2 67.5 71.4 76.2 79.5
60 35.5 37.5 40.5 43.2 46.5 74.4 79.1 83.3 88.4 92.0
70 43.3 45.4 48.8 51.7 55.3 85.5 90.5 95.0 100 104
80 51.2 53.5 57.2 60.4 64.3 96.6 102 107 112 116
90 59.2 61.8 65.6 69.1 73.3 108 113 118 124 128
100 67.3 70.1 74.2 77.9 82.4 118 124 130 136 140
f(x2)
x2A
0
A
2x
TABLE 5 Critical Values of the 2 Distribution
App-B.qxd 11/22/10 6:41 PM Page B-11

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