T-Test Online Calculator
Online t-test calculator. Supports one-sample, two-sample and paired t-tests. Automatically calculates the p-value, confidence interval and test conclusion.
When should I use a t-test?
A t-test checks whether means differ significantly. A one-sample test compares against a target value, a two-sample test compares two groups, and a paired t-test compares before-and-after measurements.