What is Hypothesis Testing t-test Calculator and Why it Matters?
The one-sample t-test decides whether a sample mean differs significantly from a hypothesized value.
Mathematical Formula and Theory
t = (x̄−μ₀)/(s/√n) with n−1 degrees of freedom. Reject H₀ when |t| exceeds the critical value.
How to Use This Calculator - Step by Step
- Enter sample values, μ₀, and α.
- Click Run t-Test.
Solved Example with Full Calculation
Sample mean≈12.329, s≈0.412, t≈2.11 (df=6). At α=0.05 we fail to reject H₀: μ=12.