This article examines the most common statistic reported in scientific papers and used in applied statistical analyses – the p-value. The article goes through the definition illustrated with examples, discusses its utility, interpretation, and common misinterpretations of observed statistical significance and significance levels. It is structured as follows: p-value definition and meaning What does ‘p‘ […] Read More…

# Author Archives: Georgi Georgiev

## The p value – definition and interpretation of p-values in statistics

## BMI for Women: Does a BMI Calculator for Women Make Sense?

There are multiple BMI calculators out there, including our own online Body Mass Index calculator. Some of them make a distinction between the sexes and produce different results for men and women. Others don’t make such a distinction, including those put forth by the most respected health organizations such as the U.S. CDC, NIH, and […] Read More…

## How to Punch Harder – Increase Your Punching Power Using Physics

If you are into fighting sports such as boxing, kickboxing, MMA, sanda or even a traditional martial art, you probably want to increase the punching power of your fists. When discussing how to punch harder one can hear contradictory advice for example “speed equals power” and “power is not speed”. It seems much of the […] Read More…

## Compound Annual Growth Rate (CAGR) – What You Need to Know

In this article we will talk about CAGR (Compound Annual Growth Rate) in detail, including the formula for computing it, how to calculate it in Excel, how to interpret it, its utility in assessing financial assets, making predictions, and more: What does CAGR stand for? What is Compound Annual Growth Rate? CAGR calculation formula CAGR […] Read More…

## What is Six Sigma Process Control and Why Most Get It Wrong (1.5 Sigma Shift)

What is Six Sigma? Six Sigma, commonly written as 6σ, is a set of techniques for process improvement originally developed for industrial manufacturing by engineer Bill Smith at Motorola in the 1980-s. A central part of the six sigma tools are procedures for statistical process control: ensuring production meets particular quality standards which result in […] Read More…

## The Mathematics of Weight Loss – Putting the 3500 Calorie Myth to Rest

There is a lot of scientific work done with regards to the reduction in caloric intake required to achieve a particular weight loss goal. The mathematics behind the science of weight loss are, in fact, quite fascinating and in this article we will go over them in some detail. In doing so, we will address […] Read More…