Case Studies/Articles

Understanding Binomial Confidence Intervals

The Binomial Distribution is commonly used in statistics in a variety of applications. There are several ways to estimate the Binomial Confidence Interval (CI); in this article we will focus on the Normal Approximation Method and the Clopper-Pearson Method. read full article

Introduction to FMEA on a Ski-Resort Gondola Lift

I was suspended approximately 200 feet above a ravine when the thought occurred to me. Had the engineer(s) of the Gondola Lift that my family and I were currently occupying used Failure Mode and Effects Analysis (FMEA) when designing the lift?  read full article

Roger Clemens, Barry Bonds, Performance-Enhancing Drugs, and a Hypothesis Test

Athletes and their purported use of performance-enhancing drugs have dominated the sporting news in the last few months. The controversy seems to be particularly heated in the sport of baseball, with the Mitchell Report naming many famous players. Of particular interest is the accusation by Brian McNamee that Roger Clemens used performance-enhancing drugs to increase his performance. read full article

Calculating Type I Probability - Article covering the math details behind the article Roger Clemens and a Hypothesis Test.