# Category: Statistical Analysis

Statistical Analysis

### Understanding What is Not in the Data: A CECL Illustration

In our last post, we discussed the importance of understanding both what is and what is not included in the data for regression analysis. In this post, we further emphasize this point with an illustration relevant to a common CECL methodology – the probability of default/loss given default method (PD/LGD).

### The Importance of Sample Segmentation for Regression Analysis

One of the first questions before beginning any type of statistical analysis is what data are included and how should the sample or samples be formulated and segmented. In previous posts, we have addressed various nuances in regard to regression modeling and how the inappropriate application of regression and modeling techniques to real world issues […]

### Statistical Thinking

Economist Karl Popper referred to science as the “art of systematic over-simplification.” Indeed, if science is discovery and knowledge creation, that certainly cannot take place through “systematic over-complication.” Knowledge can only be created by that which is understood, and often the pathway there is through simplification.

### Proper Application of Regression for Fair Lending Analysis

For the last decade the regulatory and enforcement agencies have been increasingly using statistical methods such as regression to evaluate fair lending compliance. With the passage of Dodd-Frank and the new emphasis on modeling and quantification, there has been a fervor to apply econometric techniques to a wide array of issues in the financial industry. […]

### What Does “Statistical Significance” Mean Anyway? Part 2 of 2

In our previous post, we started introducing the concept of statistical significance. We began with making two important points. First, statistical methods are applied in order to estimate or measure an unknown. A sample of data is analyzed which is then used to draw conclusions about a larger population. This is known as statistical inference. […]

### What Does “Statistical Significance” Mean Anyway? Part 1 of 2

When statistical methods are applied to evaluate fair lending compliance, one of the metrics of interest is the statistical significance of measured differences in treatment of applicants. Such differences may be measured by such things as the interest rates charged on loans or the rates of denial for one group versus another (such as males […]

### Z Statistics Versus T Statistics in Fair Lending Analysis

Regression analysis for fair lending with respect to underwriting analyses generally use what are known as “discrete choice” models.  Such functional forms are used in which the measurement (dependent) variable is categorical or a limited outcome.  In an underwriting evaluation for fair lending analysis, for example, what is measured is either approval or denial.  A common […]

### Understanding Fair Lending Regression Tables in One Easy Lesson

In studying your bank’s loan data, how can you determine the relationships among various factors in your lending policies, customer base, pricing, and more? Through the use of regression modeling, an important tool in statistical analysis.