Chi-square test for independence
When it comes to examining statistical dependence on categorical variables without relying on parametric assumptions, chi-square test for independence is a great fit. Examine the signup rate metric's dependence on the landing pages of the homepage dataset by looking at groups A and B only.
The homepage
dataset is loaded for you along with the necessary imports.
This exercise is part of the course
A/B Testing in Python
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
from scipy import stats
# Calculate the number of users in groups A and B
n_A = homepage[homepage['____'] == '____']['____'].____()
n_B = homepage[homepage['____'] == '____']['____'].____()