CRITICALVALUESOFTHE

PEARSON

Level of significance for one-tailedtest

df
(= N-2;N= number of pairs)

1
2
3
4
5

.05

.025

.01

.005

Level of significance for two-tailed test

.10

.05

.02

.01

.988 .900 .805 .729 .669

.622 .582 .549 .521 .497

.476 .458 .441 .426 .412

.997 .950 .878 .811 .754

.707 .666 .632 .602 .576

.553 .532 .514 .497 .482

.9995
.980
.934
.882
.833

.789
.750
.716
.685
.658

.634
.612
.592
.574
.558

.9999
.990
.959
.917
.874

.834
.798
.765
.735
.708

.684
.661
.641
.623
.606

6
7
8
9 10

11 12 13 14 15