Seonglae ChoH0
False Positive(Type I Error ) contradicts Null Hypothesis while False Negative (Type II Error ) fails to reject Null Hypothesis. Statistical Power is defined as which is True Positive Rate.
Definition
Rejecting the null hypothesis does not mean proving the alternative hypothesis. Just as being not innocent does not mean being guilty of that specific crime.
It is a mechanism designed to avoid subjectivity, as it is much easier to prove something is not true than to prove it is true, using a hypothesis meant to be disproven that doesn't affect the paradigm. For example, when testing the difference between two sample means, we premise the assumption that the populations of the two sample groups are the same.
귀무가설 (새로울 게 없다는 어원)
실패를 기도하는 이론 - 귀무가설과 대립가설 - 공돌이의 수학정리노트 (Angelo's Math Notes)
분야를 막론하고 새로운 것을 공부하다보면 맞닥뜨리는 어려움 중 하나는 용어이다.그래서 용어에 대해 친숙해지고 나서야 비로소 해당 분야에 대해서 공부가 풀려가기 시작하는 경우도 많다.통계학에서 처음 접하는 용어 중 어려운 것들을 꼽으라면 가설에 관한 것이다.귀무가설, 대립가설이 대표...
https://angeloyeo.github.io/2020/03/25/hypothesis.html