Run t-tests, z-tests, chi-square, and more in seconds. Free, accurate online calculators for hypothesis testing and statistical analysis.

This t-test calculator allows you to use either the p-value approach or the critical regions approach to hypothesis testing! Enter your T-score and the number of degrees of freedom.

Our Test Statistic Calculator allows you to quickly and accurately compute z-scores, t-values, chi-square statistics, and other key test values—all in one place.

This test statistic calculator helps to find the static value for hypothesis testing. The calculated test value shows if there’s enough evidence to reject a null hypothesis.

The easy-to-use hypothesis testing calculator gives you step-by-step solutions to the test statistic, p-value, critical value and more.

Use this test statistic calculator to evaluate a hypothesis with various statistical parameters based on your data.

Choose the right statistical test for your data. Our interactive selector helps you find the appropriate test based on your research question and data characteristics, or browse the comprehensive table of …

Here you'll find a set of statistics calculators that are intuitive and easy to use. Included are a variety of tests of significance, plus correlation, effect size and confidence interval calculators.

The Test Value Calculator is a powerful, easy-to-use tool that streamlines the critical step of computing test statistics. Whether for academic research, business quality control, or personal learning, this …

The test value calculator transforms the data analysis by simplifying the hypothesis testing. Attach to the guide below to utilize the test statistics calculator.