One-Sample z-Test
Calculate One-Sample z-Test instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
One-Sample z-Test
Mean
μ₀
σ
n
z
2.7386
More about: One-Sample z-Test
What it calculates
The “One-Sample z-Test” calculator computes z from 4 parameters: mean, μ₀, σ, n.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters Mean = 100, μ₀ = 95, σ = 10, n = 30 the result is 2.74.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.