Jim Chappelow is an independent consulting economist with over 13 years of experience in economic development, research, teaching, forecasting, and consulting. David Kindness is a Certified Public ...

What is a one sample t test? The t test is a commonly used hypothesis test in statistics that allows us to compare the mean value of a group of sampled data with some hypothesized value, usually a ...

Imagine we had a question: “Do men and women differ on X?” No matter what “X” is—height, empathy, knowledge of 13 th century Spanish history, or anything else—we know that any given man will be ...