Alpha level
z 0.01 0.05
-3.4 0.0003 0.0003
-3.3 0.0005 0.0004
-3.2 0.0007 0.0006
-3.1 0.0009 0.0008
-3 0.0013 0.0011
-2.9 0.0018 0.0016
-2.8 0.0025 0.0022
-2.7 0.0034 0.003
-2.6 0.0045 0.004
-2.5 0.006 0.0054
-2.4 0.008 0.0071
-2.3 0.0104 0.0094
-2.2 0.0136 0.0122
-2.1 0.0174 0.0158
-2 0.0222 0.0202
-1.9 0.0281 0.0256
-1.8 0.0351 0.0322
-1.7 0.0436 0.0401
-1.6 0.0537 0.0495
-1.5 0.0655 0.0606
-1.4 0.0793 0.0735
-1.3 0.0951 0.0885
-1.2 0.1131 0.1056
-1.1 0.1335 0.1251
-1 0.1562 0.1469
-0.9 0.1814 0.1711
-0.8 0.209 0.1977
-0.7 0.2389 0.2266
-0.6 0.2709 0.2578
-0.5 0.305 0.2912
-0.4 0.3409 0.3264
-0.3 0.3783 0.3632
-0.2 0.4168 0.4013
-0.1 0.4562 0.4404
0 0.496 0.4801
0.1 0.5438 0.5596
0.2 0.5832 0.5987
0.3 0.6217 0.6368
0.4 0.6591 0.6736
0.5 0.695 0.7088
0.6 0.7291 0.7422
0.7 0.7611 0.7734
0.8 0.791 0.8023
0.9 0.8186 0.8289
1 0.8438 0.8531
1.1 0.8665 0.8749
1.2 0.8869 0.8944
1.3 0.9049 0.9115
1.4 0.9207 0.9265
1.5 0.9345 0.9394
1.6 0.9463 0.9505
1.7 0.9564 0.9599
1.8 0.9649 0.9678
1.9 0.9719 0.9744
2 0.9778 0.9798
2.1 0.9826 0.9842
2.2 0.9864 0.9878
2.3 0.9896 0.9906
2.4 0.992 0.9929
2.5 0.994 0.9946
2.6 0.9955 0.996
2.7 0.9966 0.997
2.8 0.9975 0.9978
2.9 0.9982 0.9984
3 0.9987 0.9989
3.1 0.9991 0.9992
3.2 0.9993 0.9994
3.3 0.9995 0.9996
3.4 0.9997 0.9997