Hypothesis Testing Calculator

Statistical significance testing with t-tests, z-tests, and p-values

Sample Mean

Population Mean (H₀)

Sample Standard Deviation

Sample Size

Alternative Hypothesis

Confidence Level (%)

Instructions

1.Select the appropriate test type

2.Enter your sample data

3.Choose alternative hypothesis

4.Set confidence level

5.Click Perform Test

One-Sample t-Test: Compare sample mean to population

Two-Sample t-Test: Compare two independent samples

Paired t-Test: Compare paired observations

Z-Test: Large sample or known population variance

•P-value < α: Reject null hypothesis (significant)

•P-value ≥ α: Fail to reject null hypothesis

•Confidence interval excludes null value: Significant