T-Test Calculator

Calculate the t-statistic, degrees of freedom, and approximate p-value for a one-sample t-test.

Sample Mean (x̄)

Population Mean (μ)

Sample Standard Deviation (s)

Sample Size (n)

Tab to move between fields

T-Statistic

1.83

P-Value (two-tailed, approx)

0.07

Degrees of Freedom29

Standard Error2.74

Significant at α=0.05 (1=Yes)0

95% Margin of Error (z-approx)5.37

How to Use This Calculator

Enter Sample Mean (x̄), Population Mean (μ), and Sample Standard Deviation (s).
Set Sample Size (n).
Review T-Statistic and P-Value (two-tailed, approx).
Use Degrees of Freedom and Standard Error to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

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