Logistic Regression Introduction
What is logistic regression? It is part of the general statistics area of regression. Some other types of […]
Statistics
Choosing a Statistical Test
Here is an article over at Scribbr that explains how to choose a statistical test. The article is […]
Analysis of Variance (ANOVA)
In analyzing your data, do you need to examine the relationship between categorical and continuous variables? It’s critically […]
Statistical t Test
A t test is a statistical test that is used to compare the means of two groups. It […]
Simple Linear Regression Assumptions
Model assumptions as statements about the data that must be true in order to justify the use of […]
A/B Testing
What is A/B testing? It is an experiment with two groups to establish which group is better. The […]
Hypothesis Test of a Coin Toss
Let’s look at a simplified hypothesis test. To begin learning about hypothesis testing, let’s look at a very […]
Measures of Dispersion
After considering measures of central tendency and asymmetry in our discussion of descriptive statistics, it’s time to look […]
Conditional Probability
Let’s discuss how to calculate probability for two or more dependent events. This type of probability is known […]
Population and Sampling
Population and Sample The population includes all objects of interest whereas the sample is only a portion of […]
Interpreting Confidence Intervals
Confidence intervals are often misunderstood. Let’s use an example. You have a population of oak trees in your […]
Sampling Introduction
Inferential statistics uses sample data to draw conclusions or make predictions about a larger population. Sampling is the […]