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Aug 23,2025
Making Statistical Concepts Accessible – Edition 15: Modeling Count Data with the Poisson Distribution
In public health data analysis, disease counts, proportions, and rates are often used as outcome variables. These discrete outcomes differ from the continuous variables typically associated with linear regression. When analyzing count data, especially when…
Aug 13,2025
Case Study: Detecting Machine Signal Modes Using Statistical Analysis
Problem Description We have a time series signal that switches between two modes: on (e.g., at t = 0s) and off (e.g., at t = 0.001504s). These modes correspond to different signal values. Our goal…
Jul 30,2025
Making Bayesian Statistics Accessible to Everyone – Edition 1: From Frequentist to Bayesian Statistics
Introduction Statisticians draw data from a subset of the population, known as a sample, which should be representative of the whole. Analyses are then conducted on the sample with the intention of making reliable inferences…
Jul 29,2025
Case Study: Predicting Customer Sensitivity to Interest Rate Changes – A Step-by-Step Binary Classification Approach Using Random Forest
Introduction A leading retail bank aims to optimize the pricing of its credit portfolio by predicting how sensitive its customers are to changes in interest rates. This case study provides a step-by-step walkthrough of how…
Jul 03,2025
Revenue Forecasting for Supermarket Chains: A Case Study with an Anonymous Supermarket Chain in Germany
I. Introduction and Problem Description Project Overview In this project, we present a robust end-to-end framework for forecasting daily revenue across multiple locations of an anonymous supermarket chain. Leveraging historical transaction data, the framework employs…
Jul 03,2025
Case Study: Identifying Claim-Prone Customer Segments for a Car Insurance Provider
I. Introduction and Problem Description This case study offers a step-by-step guide to applying segmentation algorithms, with a particular focus on their use in a car insurance context. The code for this analysis is available…
Jun 07,2025
Making SAS Accessible to Everyone – Edition 20: Knowledge Quiz Part 3
Introduction Welcome to Edition 20 of Making SAS Accessible to Everyone. This final quiz installment tests your knowledge of concepts from Editions 14 to 17, including: Combining tables Processing repetitive code Restructuring data tables Introduction…
Jun 07,2025
Making SAS Accessible to Everyone – Edition 19: Knowledge Quiz Part 2
Introduction Welcome to Edition 19 of Making SAS Accessible to Everyone. This edition is the second quiz in our review series. It focuses on key topics covered in Editions 9 to 13, including: SQL processing…
Jun 07,2025
Making SAS Accessible to Everyone – Edition 18: Knowledge Quiz Part 1
Introduction Welcome to Edition 18 of Making SAS Accessible to Everyone. This edition is a knowledge check. It features a quiz to reinforce your understanding of key concepts from Editions 1 through 8, covering: Basic…
Jun 06,2025
Making SAS Accessible to Everyone – Edition 17: Introducing the SAS Macro Language
Introduction Welcome to Edition 17 of Making SAS Accessible to Everyone. In this edition, we begin our journey into one of SAS’s most powerful and flexible tools: the macro language. Macros allow you to: Write…
