Course Content

# The Art of A/B Testing

1. What is A/B testing?

The Art of A/B Testing

## Challenge: Fourth T-Test

# Task

Your task is to do a **t-test**. Recall that the distribution in the *'Earning'* column has a *normal* distribution in both datasets. Also, there is *no* statistically significant difference between the *variances*.
Are the *means* of the two samples equal?

- Calculate the mean values.
- Perform a t-test.

Everything was clear?

Section 4. Chapter 5