# Detailed Insight of Paired T-Test and Online Calculator

The statistic is a vast domain offering numerous methods and formulas to solve our day to day mathematical problems. It offers a meaningful and convenient form of raw data. With the help of statistics, you can make your data concise, expressive, precise and meaningful. In simple words, the statistic is a branch that refers to collection, interpretation, analysis, and representation.

On talking about the importance of statistics, if you are looking for paired t test calculator online then we are here to help. Below we are sharing a detailed view on paired t-test and online free calculator that can help in easy calculations:

## What is a Paired sample t-test?

A paired sample t-test uses for comparing two means that have the same objects, individuals or related values at different times. The paired sample t-test can be conducted under situations like:

Measurements taken of two similar samples at different times (for example pre-test and post-test of a sample between the two-time points)

The observation took of two similar samples under two different conditions (for example observation has taken under a controlled condition and experimental conditions)

The paired sample t-test is also called as dependent or repeated measure t-test. The paired sample t-test can only be implemented on the means of two related units (dependent) with a continuous outcome. The formula can’t be implemented on unpaired data or between more than two samples.

## The formula for Paired Samples t-test:

To compare the means of the two paired sets of data, the differences between all the sets of pairs must be calculated.

T-test statistic value can be calculated as follow: