# Paired *t*-Test

The paired t-test is a statistical test that determines whether the means of two sample sets differ significantly.

Paired t-test is a college-level concept that would be first encountered in a probability and statistics course. It is an Advanced Placement Statistics topic.

### Prerequisites

Hypothesis: | (1) In the mathematical and physical sciences, the term hypothesis is often used as a rough synonym for conjecture . (2) In statistics, a hypothesis is a statement that can be tested. (3) In logic, a hypothesis is the first part of a logical implication. |

Statistical Test: | A statistical test is a test used to determine the statistical significance of an observation. |