Page 367 - Statistics for Dummies

The t-Table
Numbers in each row of the table are values on a t-distribution with
(df) degrees of freedom for selected right-tail (greater-than) probabilities (p).
t (p, df)
0.10
0.01
0.025
0.05
0.40
df/p
0.0005
0.25
0.005
12.70620
0.324920
636.6192
63.65674
31.82052
0.816497
9.92484
1.885618
2.919986
6.96456
4.30265
0.288675
31.5991
5.84091
12.9240
4.54070
3.18245
2.353363
0.764892
1.637744
0.276671
0.740697
4.60409
1.533206
8.6103
2.131847
0270722
3.74695
2.77645
1.475884
3.36493
4.03214
2.015048
2.57058
6.8688
0.267181
0.726687
2.44691
0.717558
1.943180
3.70743
0.264835
1.439756
5.9588
3.14267
7 1 2 3 4 5 6 Table A-2 1.000000 3.077684 6.313752 Appendix: Tables for Reference 351
2.36462
0.263167
5.4079
1.894579
0.711142
1.414924
2.99795
3.49948
8 0.261921 0.706387 1.396815 1.859548 2.30600 2.89646 3.35539 5.0413
9 0.260955 0.702722 1.383029 1.833113 2.26216 2.82144 3.24984 4.7809
10 0260185 0.699812 1.372184 1.812461 2.22814 2.76377 3.16927 4.5869
11 0259556 0.697445 1.363430 1.795885 2.20099 2.71808 3.10581 4.4370
12 0259033 0.695483 1.356217 1.782288 2.17881 2.68100 3.05454 43178
13 0.258591 0.693829 1.350171 1.770933 2.16037 2.65031 3.01228 4.2208
14 0.258213 0.692417 1.345030 1.761310 2.14479 2.62449 2.97684 4.1405
15 0.257885 0.691197 1.340606 1.753050 2.13145 2.60248 2.94671 4.0728
16 0257599 0.690132 1.336757 1.745884 2.11991 2.58349 2.92078 4.0150
17 0.257347 0.689195 1.333379 1.739607 2.10982 2.56693 2.89823 3.9651
18 0.257123 0.688364 1.330391 1.734064 2.10092 2.55238 2.87844 3.9216
19 0.256923 0.687621 1.327728 1.729133 2.09302 2.53948 2.86093 3.8834
20 0.256743 0.686954 1.325341 1.724718 2.08596 2.52798 2.84534 3.8495
21 0.256580 0.686352 1.323188 1.720743 2.07961 2.51765 2.83136 3.8193
22 0256432 0.685805 1.321237 1.717144 2.07387 2.50832 2.81876 3.7921
23 0256297 0.685306 1.319460 1.713872 2.06866 2.49987 2.80734 3.7676
24 0.256173 0.684850 1.317836 1.710882 2.06390 2.49216 2.79694 3.7454
25 0.256060 0.684430 1.316345 1.708141 2.05954 2.48511 2.78744 3.7251
26 0.255955 0.684043 1.314972 1.705618 2.05553 2.47863 2.77871 3.7066
27 0.255858 0.683685 1.313703 1.703288 2.05183 2.47266 2.77068 3.6896
28 0.255768 0.683353 1.312527 1.701131 2.04841 2.46714 2.76326 3.6739
29 0.255684 0.683044 1.311434 1.699127 2.04523 2.46202 2.75639 3.6594
30 0.255605 0.682756 1.310415 1.697261 2.04227 2.45726 2.75000 3.6460
z 0.253347 0.674490 1.281552 1.644854 1.95996 2.32635 2.57583 3.2905
CI 80% 90% 95% 98% 99% 99.9%
3/25/11 8:12 PM
31_9780470911082-bapp01.indd 351 3/25/11 8:12 PM
31_9780470911082-bapp01.indd 351