Paired t-Test Calculator

  • Tests whether the mean difference between paired observations differs from zero.
  • Provides test statistic, p-value and confidence interval for the mean difference.
  • Supports one-sided and two-sided alternatives.

Input Values

Specify input values and click Calculate. Hover over for help.

  0.05

Influence of Changing Input Values on the t-Statistic

Customize Visualisation

Customize the plot by changing input values from here.

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Visualisation

This visualisation plots the absolute t-statistic for three numbers of pairs as the mean difference varies.

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Table of t-Statistics and p-Values at a range of Mean Differences and Sample Sizes

Customize Table

Customize the table by changing input values from here.

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t-Statistic and p-Value Table

This table shows t-statistics (and two-sided p-values) for a range of mean differences and numbers of pairs.

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