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Dummy Variables: A Solution for Categorical Variables in OLS Linear Regression

If you’re analyzing data using OLS linear regression, there are…

The Difference Between Residual and Error in Statistics

For those of you who are learning statistics, you’ve probably…

Use Stratified Random Sampling When the Population Is Not Entirely Homogeneous

Sampling techniques are very important, especially when we're observing a…

Snowball Sampling Technique: A Solution When the Population Size Is Unknown

In conducting research, we generally take samples from a population…

How to Create Dummy Variables in Multiple Linear Regression Analysis

For those of you conducting multiple linear regression analysis, have…

How to Detect Normally Distributed Data in Linear Regression Analysis

When you conduct data analysis using linear regression, there are…

If the Data Is Not Normally Distributed, Can We Still Use the Paired Sample t-Test?

In parametric statistical analysis, there are generally several assumptions that…

Understanding Cross-Section, Time Series, and Panel Data Structures in Research

For those of you currently conducting research, I believe it’s…