t-statistic Calculator

t-Statistic Calculator

One-sample • Two-sample • Paired • Welch/pooled • Ajax loading • Hard reset

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Settings

🧪 Mode

This calculator outputs the t statistic (and df/SE), without p-value or CI.

🎯 One-sample hypothesis

μ₀

Quick summary

Enter data to compute t.

⚖️ Two-sample assumption Assume equal variances (pooled)

Unchecked = Welch’s t statistic (recommended).

Quick summary

Enter data for both groups.

🔗 Paired mode

Computes differences (A − B) then one-sample t with μ₀=0.

Quick summary

Enter paired data (same length).

Data

📌 Sample / Group A

Paste lists; we ignore non-numeric tokens.

Results

t statistic

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Degrees of freedom (df)

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Standard error (SE)

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Effect (mean diff)

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n (A / B)

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Min / Max (A)

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Action

Hard reset: cancels pending updates and clears everything on the first click.

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