t Table
t-percentile | 0.90 | 0.95 | 0.975 | 0.99 | 0.995 |
two tails | 0.20 | 0.10 | 0.05 | 0.02 | 0.01 |
confidence | 0.80 | 0.90 | 0.95 | 0.98 | 0.99 |
df | |||||
1 | 3.08 | 6.31 | 12.71 | 31.82 | 63.66 |
2 | 1.89 | 2.92 | 4.30 | 6.96 | 9.93 |
3 | 1.64 | 2.35 | 3.18 | 4.54 | 5.84 |
4 | 1.53 | 2.13 | 2.78 | 3.75 | 4.60 |
5 | 1.48 | 2.02 | 2.57 | 3.36 | 4.03 |
6 | 1.44 | 1.94 | 2.45 | 3.14 | 3.71 |
7 | 1.41 | 1.89 | 2.36 | 3.00 | 3.50 |
8 | 1.40 | 1.86 | 2.31 | 2.90 | 3.36 |
9 | 1.38 | 1.83 | 2.26 | 2.82 | 3.25 |
10 | 1.37 | 1.81 | 2.23 | 2.76 | 3.17 |
11 | 1.36 | 1.80 | 2.20 | 2.72 | 3.11 |
12 | 1.36 | 1.78 | 2.18 | 2.68 | 3.06 |
13 | 1.35 | 1.77 | 2.16 | 2.65 | 3.01 |
14 | 1.35 | 1.76 | 2.14 | 2.62 | 2.98 |
15 | 1.34 | 1.75 | 2.13 | 2.60 | 2.95 |
16 | 1.34 | 1.75 | 2.12 | 2.58 | 2.92 |
17 | 1.33 | 1.74 | 2.11 | 2.57 | 2.90 |
18 | 1.33 | 1.73 | 2.10 | 2.55 | 2.88 |
19 | 1.33 | 1.73 | 2.09 | 2.54 | 2.86 |
20 | 1.33 | 1.72 | 2.09 | 2.53 | 2.84 |
21 | 1.32 | 1.72 | 2.08 | 2.52 | 2.83 |
22 | 1.32 | 1.72 | 2.07 | 2.51 | 2.82 |
23 | 1.32 | 1.71 | 2.07 | 2.50 | 2.81 |
24 | 1.32 | 1.71 | 2.06 | 2.49 | 2.80 |
25 | 1.32 | 1.71 | 2.06 | 2.49 | 2.80 |
26 | 1.31 | 1.71 | 2.06 | 2.48 | 2.78 |
27 | 1.31 | 1.70 | 2.05 | 2.47 | 2.77 |
28 | 1.31 | 1.70 | 2.05 | 2.47 | 2.76 |
29 | 1.31 | 1.70 | 2.05 | 2.46 | 2.76 |
30 | 1.31 | 1.70 | 2.04 | 2.46 | 2.75 |
40 | 1.30 | 1.68 | 2.02 | 2.42 | 2.70 |
60 | 1.30 | 1.67 | 2.00 | 2.39 | 2.66 |
120 | 1.29 | 1.66 | 1.98 | 2.36 | 2.62 |
infinite = Z | 1.28 | 1.64 | 1.96 | 2.33 | 2.58 |