Calculator: \(t\)-testing

Summary

Calculators to provide facilities for all types of \(t\)-testing.

\(t\)-testing calculator

Parameters

Sample size (n)
Sample mean
Sample standard deviation
Population mean (μ₀)

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Calculate the t-statistic for testing whether a sample mean differs from a population mean.

Formula

\[ t = \frac{\bar{x}-\mu_0} {s/\sqrt{n}} \]

Results

Sample 1

Sample Size (n₁)
Sample Mean (x̄₁)
Sample SD (s₁)

Sample 2

Sample Size (n₂)
Sample Mean (x̄₂)
Sample SD (s₂)

Test Settings

Independent Samples (Equal variances) Independent Samples (Welch's t-test) Paired Samples
Choose between pooled t-test, Welch's t-test, or a paired-samples approximation.

Formula

Results

p-value and tail selection

Two-tailed
One-tailed (upper)
One-tailed (lower)

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T Distribution Plot

Version history

v1.0: created by tdhc 08/25.

• v1.1: facilities transferred from R Shinylive to html by tdhc in 06/26.

This work is licensed under CC BY-NC-SA 4.0.