Enter either the p-value (represented by the blue area on the graph) or the test statistic (the coordinate along the horizontal axis) below to have the other value computed.

p-value:

z-value:



mean:

std. dev:



two tails

right tail

left tail

mean to z

2-sided mean to z



-3 -2 -1 0 1 2 3 p = 0.05 z = 1.96