Vogel: Análise Química Quantitativa
Apêndice 11 Pontos percentuais na distribuição de t
A tabela dá o valor de tα, v – o ponto percentual 100α da distribuição de t para v graus de liberdade.
A tabulação é unilateral, isto é, para valores positivos de t. Para |t|, os valores de α devem ser dobrados.
v α
0,10 0,05 0,025 0,01 0,005 0,001 0,0005
1 3,078 6,314 12,706 31,821 63,657 318,31 636,62
2 1,886 2,920 4,303 6,965 9,925 22,326 31,598
3 1,638 2,353 3,182 4,541 5,841 10,213 12,924
4 1,533 2,132 2,776 3,747 4,604 7,173 8,610
5 1,476 2,015 2,571 3,365 4,032 5,893 6,869
6 1,440 1,943 2,447 3,143 3,707 5,208 5,959
7 1,415 1,895 2,365 2,998 3,499 4,785 5,408
8 1,397 1,860 2,306 2,896 3,355 4,501 5,041
9 1,383 1,833 2,262 2,821 3,250 4,297 4,781
10 1,372 1,812 2,228 2,764 3,169 4,144 4,587
11 1,363 1,796 2,201 2,718 3,106 4,025 4,437
12 1,356 1,782 2,179 2,681 3,055 3,930 4,318
13 1,350 1,771 2,160 2,650 3,012 3,852 4,221
14 1,345 1,761 2,145 2,624 2,977 3,787 4,140
15 1,341 1,753 2,131 2,602 2,947 3,733 4,073
16 1,337 1,746 2,120 2,583 2,921 3,686 4,015
17 1,333 1,740 2,110 2,567 2,898 3,646 3,965
18 1,330 1,734 2,101 2,552 2,878 3,610 3,922
19 1,328 1,729 2,093 2,539 2,861 3,579 3,883
20 1,325 1,725 2,086 2,528 2,845 3,552 3,850
21 1,323 1,721 2,080 2,518 2,831 3,527 3,819
22 1,321 1,717 2,074 2,508 2,819 3,505 3,792
23 1,319 1,714 2,069 2,500 2,807 3,485 3,767