What is the difference between Type I and Type II errors in

What is the difference between Type I and Type II errors in hypothesis testing? How do and relate to Type I and Type II errors?

Solution

A type I error can only occur when you reject Ho. A type II error can only occur when you fail to reject Ho.

Alpha is the probability of committing a type I error when you reject Ho.

Beta is the probability of committing a type II error when you fail to reject Ho.