# Inferential Statistics

## What is a Partial Correlation?

I’m a bit of a bigger guy. As a bigger guy, I have done a few things to try and shed a pound or two over the years like diet and exercise. And being the unique nerd that I am, I have tracked my data using several apps and spreadsheets. Now, you may be asking, […]

## What is a Chi-Square Test?

Things don’t always come out the way that you expect in statistics. There may be a hidden bias in the choices people make or maybe the data are not created equally. To address the expected versus the unexpected, we use a special statistical test called a chi-square test (pronounced ki as in kind). It is […]

## Analysis of Variance Explained

What do you do to relax? Personally, I enjoy writing about statistics, among other things. But surely, there are other things, like reading or even playing video games. But which is the most relaxing? Well, that calls for an experiment! I know, you love experiments, especially when you get to use fancy new methods like […]

## T-Test and F-Test: Fundamentals of Test Statistics

Statistics is all about coming up with models to explain what is going on in the world. But how good are we at that? I mean, numbers are only good for so many things, right? How do we know if they are telling the right story? Enter the famous world of test statistics. The goal […]

## Type I Error Definition and Examples

Sometimes the conclusion you draw from a hypothesis test is incorrect. In this article, we’ll look at one way it can be incorrect, called a Type I error.

## Type II Error Definition and Examples

Type II errors are the “false negatives” of hypothesis testing. Learn more about what Type II errors are, why they happen, and how to avoid them!

## What is Logistic Regression?

I like my data to be nice and straight. Know why? Because it is easy to predict outcomes that way. But data doesn’t always come in a clean line. Sometimes, it’s how likely something happens that we want to know instead of an actual outcome. Enter logistic regression. The Gist of Logistic Regression Recall that […]

## Multiple Regression Analysis

In life and statistics, a lot of questions are way more complicated than they appear on the surface. Take buying a car. There are a few things to consider beyond how wicked awesome the car looks flying down the highway. Multiple regression analysis is how you can statistically consider numerous things simultaneously. In a previous […]

## What is the Regression Equation?

First off, calm down because regression equations are super fun and informative. In statistics, the purpose of the regression equation is to come up with an equation-like model that represents the pattern or patterns present in the data. So let’s discuss what the regression equation is. The Variables Essentially, we use the regression equation to […]

## What is inferential statistics?

What is inferential statistics? In this post, learn the difference between descriptive and inferential statistics, and when and how to apply them!