Hypothesis Testing Tool (Z-test, T-test, Chi-square, ANOVA)

Do you need a quick and reliable way to test hypotheses in statistics? This free Hypothesis Testing Calculator helps students, teachers, economists, statisticians, and researchers perform:

• Z-test (one-sample & two-sample)
• T-test (one-sample, paired, independent)
• Chi-square test (goodness-of-fit & independence)
• ANOVA (one-way analysis of variance)

It generates step-by-step results including test statistics, degrees of freedom, p-value, and decision rule instantly.

Why This Tool?

As a statistician and economist, I know how tedious hypothesis testing can be without software. This online tool saves time and reduces error by instantly providing test results with interpretations. It’s especially useful for:

• 🎓 Students – quick homework and exam preparation.
• 📊 Teachers – explaining statistical tests in class.
• 📈 Researchers – analyzing experimental or survey data.
• 🏦 Professionals – making data-driven business decisions.

Try it now and share how it helps you in the comments!

Hypothesis Testing Tool (Z-test, T-test, Chi-square, ANOVA)

Use this free online Hypothesis Testing Tool to compute test statistics, degrees of freedom, and p-values with clear “Reject/Fail to reject” decisions. Supports: Z-test (one-sample mean, σ known), T-test (one-sample, two-sample Welch, paired), Chi-square (goodness-of-fit, independence), and one-way ANOVA.

How to use

1. Pick a test from the dropdown.
2. Enter data (raw lists or summary where required).
3. Choose the alternative (two-tailed / left / right) where applicable and set α.
4. Click Calculate to see results and interpretation.

Hypothesis Testing Tool (Z-test, T-test, Chi-square, ANOVA)

Examples

• Z-test (one-sample): Raw data 12, 15, 14, 16, 13; μ₀=14; σ=2.
• T-test (two-sample Welch): X: 10,12,9,11; Y: 13,14,12,15; Δ=0.
• Chi-square GOF: Observed 18,22,20,15,25; Expected blank (equal expected).
• Chi-square independence:
  10,20,30
6,14,20
• ANOVA:
  12,13,11
15,14,16,17
10,9,11,8