Tabla para calcular la significancia de la correlación de Pearson

Para calcular la significancia de un valor r, éste debe ser mayor que el del percentil correspondiente- Si se trata de una prueba de dos colas, la probabilidad debe duplicarse.

Valores críticos r de Pearson para una prueba unilateral
Signifi-
cancia ⇒
0.050.0250.010.005
gl ⇓9597.59999.5
10.9880.9971.0001.000
20.9000.9500.9800.990
30.8050.8780.9340.959
40.7290.8110.8820.917
50.6690.7540.8330.874
60.6220.7070.7890.834
70.5820.6660.7500.798
80.5490.6320.7160.765
90.5210.6020.6850.735
100.4970.5760.6580.708
110.4760.5530.6340.684
120.4580.5320.6120.661
130.4410.5140.5920.641
140.4260.4970.5740.623
150.4120.4820.5580.606
160.4000.4680.5420.590
170.3890.4560.5280.575
180.3780.4440.5160.561
190.3690.4330.5030.549
200.3600.4230.4920.537
210.3520.4130.4820.526
220.3440.4040.4720.515
230.3370.3960.4620.505
240.3300.3880.4530.496
250.3230.3810.4450.487
260.3170.3740.4370.479
270.3110.3670.4300.471
280.3060.3610.4230.463
290.3010.3550.4160.456
300.2960.3490.4090.449
350.2750.3250.3810.418
400.2570.3040.3580.393
450.2430.2880.3380.372
500.2310.2730.3220.354
600.2110.2500.2950.325
700.1950.2320.2740.302
800.1830.2170.2560.283
900.1730.2050.2420.267
1000.1640.1950.2300.254