Independent Sample T - test



Independent Sample T - test

Introduction

T test for independent samples to test the null hypothesis from two means or from two samples (or subgroups) that are independent. The basis of this test is that whether two means are equal in population-Based on the result of the comparison between these two samples. The technique used is called t-test for independent samples (Independent sample t test). This technique is used to compare two groups, created by a categorical variable, based on their average measurement (continuous variable). Following is the formula through we can determine the mean differences between groups:

Where ...