Standard Normal Upper Quantiles

1 2 3 4 5

/ /
/ Use column 1 for 2-sided CI
Use column 2 for 2-sided test
Use column 3 for 1-sided CI or
1-sided test
Use column 4 for tests of hyps
Use column 5 for CIs
Central
Area
Betw –z & z / Two-Tailed
Area
To left of –z &
to right of z,
combined / One-Tailed
Area
To right of z or
to left of –z,
not combined /

Upper

Quantile
z
(3 dec pls) /

Upper

Quantile
z

(5 dec pls)

.9998 / .0002 / .0001 / 3.719 / 3.71902
.999 / .001 / .0005 / 3.291 / 3.29053
.998 / .002 / .001 / 3.090 / 3.09023
* .997300 / .002700 / .0013500 / * 3.000 / * 3.00000
.995 / .005 / .0025 / 2.807 / 2.80703
.99 / .01 / .005 / 2.576 / 2.57583
.985 / .015 / .0075 / 2.432 / 2.43238
.98 / .02 / .01 / 2.326 / 2.32635
.975 / .025 / .0125 / 2.241 / 2.24140
.97 / .03 / .015 / 2.170 / 2.17009
.965 / .035 / .0175 / 2.108 / 2.10836
.96 / .04 / .02 / 2.054 / 2.05375
.9550 / .0450 / .0225 / 2.005 / 2.00465
* .954500 / .045500 / .022750 / * 2.000 / * 2.00000
.95 / .05 / .025 / 1.960 / 1.95996
.9450 / .0550 / .0275 / 1.919 / 1.91888
.94 / .06 / .03 / 1.881 / 1.88079
.93 / .07 / .035 / 1.812 / 1.81191
.92 / .08 / .04 / 1.751 / 1.75069
.91 / .09 / .045 / 1.695 / 1.69540
.90 / .10 / .05 / 1.645 / 1.64485
.88 / .12 / .06 / 1.555 / 1.55477
.86 / .14 / .07 / 1.476 / 1.47579
.85 / .15 / .075 / 1.440 / 1.43953
.84 / .16 / .08 / 1.405 / 1.40507
.82 / .18 / .09 / 1.341 / 1.34076
.80 / .20 / .10 / 1.282 / 1.28155
* .682689 / .317311 / .158656 / * 1.000 / * 1.00000