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 ...

The share of young people claiming another ‘gender identity’ exploded. Now surveys show it is receding.

At Eglin Air Force Base in Florida, a test bed for a new kind of air force, Major Trent McMullen is a fighter pilot learning to fly alongside the XQ-58, a drone piloted by artificial intelligence.