How ANOVA helps ensure process data lead to accurate, defensible decisions. The two-sample t-test determines if two population means are equal. Typical applications involve testing whether a new ...

Objectives: To determine whether a time delay greater than 6h from injury to surgical debridement influences the infection rate in open fractures. Methods: During a period of 18 months, from October ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...