Test Statistic Calculator
Test Statistic Formula
The z-test statistic formula is:
z = (x̄ - μ) / (σ/√n)
Where:
x̄ = Sample mean
μ = Population mean
σ = Population standard deviation
n = Sample size
The z-test statistic formula is:
z = (x̄ - μ) / (σ/√n)
Where:
x̄ = Sample mean
μ = Population mean
σ = Population standard deviation
n = Sample size