T-Test Calculator
Perform a one-sample t-test to determine if a sample mean differs significantly from a known value.
One-sample t-test: tests whether the sample mean differs significantly from a known/hypothesized value μ₀.
What Is the T-Test Calculator?
Use this free online t-test calculator for instant, accurate results.
Formula
How to Use
Enter your values in the fields below and the result updates automatically.
Example Calculation
Enter sample values and click Calculate to see a worked example.
Understanding T-Test
T-Test Calculator is a free online tool providing instant, accurate calculations. No signup required.
All calculations run in your browser for maximum privacy and speed.
Bookmark this page for quick access to t-test calculator calculations whenever you need them.
Frequently Asked Questions
Is this calculator free?
Yes, completely free with no registration required.
How accurate are the results?
Results use standard mathematical formulas and are accurate to 6 significant figures.
Can I use this on mobile?
Yes, the calculator is fully responsive and works on all devices.
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