A/B Test for an International Online Store

Detailed Project Link

Importation of the data and libraries
Preprocessed the data and carried out exploratory data analysis
Evaluated the A/B test results
- Selected the participants for the test
- Formulated and tested statistical hypotheses about the test results
Conclusion and recommendations

Cummulative revenue from group A exceeds group B

EU participants dominated all other regions in the sample.
The maximum order total for purchase events is about $500.00, and the minimum is about $5.00, with a mean of about $23.88 and a standard deviation of about 72.22.
About 66% of users proceed from login to the product page; about 50% of those at the product page proceed to purchase.
About 15% of customers proceed to purchase without putting the product in the cart.
About 33.33% of users convert.
In the initial test by my predecessor, 441 users belonged in both groups, and 446 users participated in both test.
The highest number of events occured on the 21st December, 2020 (14044 events).
8961 participants; representing about 23% of the new users on or before 21st December 2020, from the EU region were used for the test.
There is statistically significant difference between groups A and B which implies the test was successful.

Stop the test, there is significant difference between the groups. However, group A significantly exceeds group B in number of customers and revenue.
Thus, there will be reduction in purchase with the introduction of the improved recommendation system; do not introduce the recommendation system.