This part of the problem solving stack is also called "Confirmatory data analysis". Generally, the problems that we touch base over the Internet and other learning resources explain a stack called "ECR" that can be extended as Exploratory Data Analysis + Confirmatory Data Analysis + Root Cause Analysis. This is the same approach that we have considered-Exploratory Data Analysis (EDA)-where we understand "What" happened, then CDA, that is, Confirmatory Data Analysis, where we cement the results from our exercises using statistical tests. Finally, we will answer the "Why" question using Root Cause Analysis. In our current approach, we have the same approach but a slightly different naming convention. We have broken down the steps into more granular ones:

We have now reached the EDA phase, that is, we will now validate the insights and patterns that we observed in the data. Let's start with understanding how we are going to approach this. If we look back at the journey...