附表 21两样本均数(t检验)时所需样本含量
δ |
单侧:α=0.005 双侧:α=0.01 |
单侧:α=0.005 双侧:α=0.01 |
单侧:α=0.005 双侧:α=0.01 |
单侧:α=0.005 双侧:α=0.01 |
δ |
1-β=0.99 |
0.95 |
0.9 |
0.8 |
0.5 |
0.99 |
0.95 |
0.9 |
0.8 |
0.5 |
0. 9 |
0.95 |
0.9 |
0.8 |
0.5 |
0.99 |
0.95 |
0.9 |
0.8 |
0.5 |
0.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.05 |
0.10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.10 |
0.15 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.15 |
0.20 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
137 |
0.20 |
0.25 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
124 |
|
|
|
|
88 |
0.25 |
0.30 |
|
|
|
|
|
|
|
|
|
123 |
|
|
|
|
87 |
|
|
|
|
61 |
0.30 |
0.35 |
|
|
|
|
110 |
|
|
|
|
90 |
|
|
|
|
64 |
|
|
|
102 |
45 |
0.35 |
0.40 |
|
|
|
|
85 |
|
|
|
|
70 |
|
|
|
100 |
50 |
|
|
108 |
78 |
35 |
0.40 |
0.45 |
|
|
|
118 |
68 |
|
|
|
101 |
55 |
|
|
105 |
79 |
39 |
|
108 |
86 |
62 |
28 |
0.45 |
0.50 |
|
|
|
96 |
55 |
|
|
106 |
82 |
45 |
|
106 |
86 |
64 |
32 |
|
88 |
70 |
51 |
23 |
0.50 |
0.55 |
|
|
101 |
79 |
46 |
|
106 |
88 |
68 |
38 |
|
87 |
71 |
53 |
27 |
112 |
73 |
58 |
42 |
19 |
0.55 |
0.60 |
|
101 |
85 |
67 |
39 |
|
90 |
74 |
58 |
32 |
104 |
74 |
60 |
45 |
23 |
89 |
61 |
49 |
36 |
16 |
0.60 |
0.65 |
|
87 |
73 |
57 |
34 |
104 |
77 |
64 |
49 |
27 |
88 |
63 |
51 |
39 |
20 |
76 |
52 |
42 |
30 |
14 |
0.65 |
0.70 |
100 |
75 |
63 |
50 |
29 |
90 |
66 |
55 |
43 |
24 |
76 |
55 |
44 |
34 |
17 |
66 |
45 |
36 |
26 |
12 |
0.70 |
0.75 |
88 |
66 |
55 |
44 |
26 |
79 |
58 |
48 |
38 |
21 |
67 |
48 |
39 |
29 |
15 |
57 |
40 |
32 |
23 |
11 |
0.75 |
0.80 |
77 |
58 |
49 |
39 |
23 |
70 |
51 |
43 |
33 |
19 |
59 |
42 |
34 |
26 |
14 |
50 |
35 |
28 |
21 |
10 |
0.80 |
0.85 |
69 |
51 |
43 |
35 |
21 |
62 |
46 |
38 |
30 |
17 |
52 |
37 |
31 |
23 |
12 |
45 |
31 |
25 |
18 |
9 |
0.85 |
0.90 |
62 |
46 |
39 |
31 |
19 |
55 |
41 |
34 |
27 |
15 |
47 |
34 |
27 |
21 |
11 |
40 |
28 |
22 |
16 |
8 |
0.90 |
0.95 |
55 |
42 |
35 |
28 |
17 |
50 |
37 |
31 |
24 |
14 |
42 |
30 |
25 |
19 |
10 |
36 |
25 |
20 |
15 |
7 |
0.95 |
1.00 |
50 |
38 |
32 |
26 |
15 |
45 |
33 |
28 |
22 |
13 |
38 |
27 |
23 |
17 |
9 |
33 |
23 |
18 |
14 |
7 |
1.00 |
1.1 |
42 |
32 |
27 |
22 |
13 |
38 |
28 |
23 |
19 |
11 |
32 |
23 |
19 |
14 |
8 |
27 |
19 |
15 |
12 |
6 |
1.1 |
1.2 |
36 |
27 |
23 |
18 |
11 |
32 |
24 |
20 |
16 |
9 |
27 |
20 |
16 |
12 |
7 |
23 |
16 |
13 |
10 |
5 |
1.2 |
1.3 |
31 |
23 |
20 |
16 |
10 |
28 |
21 |
17 |
14 |
8 |
23 |
17 |
14 |
11 |
6 |
20 |
14 |
11 |
9 |
5 |
1.3 |
1.4 |
27 |
20 |
17 |
14 |
9 |
24 |
18 |
15 |
12 |
8 |
20 |
15 |
12 |
10 |
6 |
17 |
12 |
10 |
8 |
4 |
1.4 |
1.5 |
24 |
18 |
15 |
13 |
8 |
21 |
16 |
14 |
11 |
7 |
18 |
13 |
11 |
9 |
5 |
15 |
11 |
9 |
7 |
4 |
1.5 |
1.6 |
21 |
16 |
14 |
11 |
7 |
19 |
14 |
12 |
10 |
6 |
16 |
12 |
10 |
8 |
5 |
14 |
10 |
8 |
6 |
4 |
1.6 |
1.7 |
19 |
15 |
13 |
10 |
7 |
17 |
13 |
11 |
9 |
6 |
14 |
11 |
9 |
7 |
4 |
12 |
9 |
7 |
6 |
3 |
1.7 |
1.8 |
17 |
13 |
11 |
10 |
6 |
15 |
12 |
10 |
8 |
5 |
13 |
10 |
8 |
6 |
4 |
11 |
8 |
7 |
5 |
|
1.8 |
1.9 |
16 |
12 |
11 |
9 |
6 |
14 |
11 |
9 |
8 |
5 |
12 |
9 |
7 |
6 |
4 |
10 |
7 |
6 |
5 |
|
1.9 |
2.0 |
14 |
11 |
10 |
8 |
6 |
13 |
10 |
9 |
7 |
5 |
11 |
8 |
7 |
6 |
4 |
9 |
7 |
6 |
4 |
|
2.0 |
2.1 |
13 |
10 |
9 |
8 |
5 |
12 |
9 |
8 |
7 |
5 |
10 |
8 |
6 |
5 |
3 |
8 |
6 |
5 |
4 |
|
2.1 |
2.2 |
12 |
10 |
8 |
7 |
5 |
11 |
9 |
7 |
6 |
4 |
9 |
7 |
6 |
5 |
|
8 |
6 |
5 |
4 |
|
2.2 |
2.3 |
11 |
9 |
8 |
7 |
5 |
10 |
8 |
7 |
6 |
4 |
9 |
7 |
6 |
5 |
|
7 |
5 |
5 |
4 |
|
2.3 |
2.4 |
11 |
9 |
8 |
6 |
5 |
10 |
8 |
7 |
6 |
4 |
8 |
6 |
5 |
4 |
|
7 |
5 |
4 |
4 |
|
2.4 |
2.5 |
10 |
8 |
7 |
6 |
4 |
9 |
7 |
6 |
5 |
4 |
8 |
6 |
5 |
4 |
|
6 |
5 |
4 |
3 |
|
2.5 |
3.0 |
8 |
6 |
6 |
5 |
4 |
7 |
6 |
5 |
4 |
3 |
6 |
5 |
4 |
4 |
|
5 |
4 |
3 |
|
|
3.0 |
3.5 |
6 |
5 |
5 |
4 |
3 |
6 |
5 |
4 |
4 |
|
5 |
4 |
4 |
3 |
|
4 |
3 |
|
|
|
3.5 |
4.0 |
6 |
6 |
4 |
4 |
|
5 |
4 |
4 |
3 |
|
4 |
4 |
3 |
|
|
4 |
|
|
|
|
4.0 |
|
|
|