Statistical t Test
A t test is a statistical test that is used to compare the means of two groups. It […]
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Simple Linear Regression Assumptions
Model assumptions as statements about the data that must be true in order to justify the use of […]
SQL Joins with Superstore
In this post I’ll look at some SQL joins using Tableau’s Superstore database as inspiration. This is not […]
Data Warehouses
What is a data warehouse? It is a central data hub of data used for reporting and data […]
Data Architecture
What is data architecture? It’s not a simple task to define data architecture, partly because the field is […]
Data Modeling
What is a data model? A data model is the result of a data modeling process. Data modeling […]
Difference Between a Framework and a Methodology
The terms framework and methodology are sometimes used interchangeably, but they are not the same thing. I’ll briefly […]
AWS Well-Architected Framework
The AWS Well-Architected Framework helps you understand the pros and cons of decisions you make while building systems […]
Machine Learning Use Cases
Machine learning is part many of cool features in the high-tech products we have today. But what can […]
Data Storage
Data storage is the second stage in the data engineering life cycle. Storage is fundamental. Choosing the proper […]
Data Serving
Serving data is the final stage in the data engineering life cycle. In the context of data engineering, […]
Data Transformation
What is data transformation? In the context of data engineering, it is part of the data engineering life […]