## Paired t-test dependent sample

In this tutorial we will discuss paired $t$-test, assumptions for paired $t$-test and step by step procedure for paired $t$-test. Paired $t$ test is also known as dependent sample t-test. Paired t-test dependent sample Let $X_1, X_2, \cdots, X_n$ and $Y_1, Y_2, \cdots, Y_n$ be two dependent samples each of size $n$ with respective means …