两样本均数(t检验)时所需样本含量
互联网
2546
佚名
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 |
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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 |