Create Time: 30th Dec 2023
Title: "[[Hypothesis-Testing-Single-Population]]"
status: DONE
Author:
- AllenYGY
tags:
- Hypothesis-Testing
- Lec3
- NOTE
- ProbabilityStatics
created: 2023-12-30T09:21
updated: 2024-04-08T20:10
Hypothesis-Testing-Single-Population
p-value: Probability of obtaining a test statistic more extreme (
就是把求出的值代回z/t table求概率
If p-value
If p-value
If
If
If
If
Reject a true null hypothesis 原假设是对的却拒绝
The probability of Type I Error is
Fail to reject a false null hypothesis 原假设是错的却接受
Fail to reject a false null hypothesis
Type I and Type II errors cannot happen at the same time
If Type I error probability
If Type I error probability
Performed Z Test for the mean (
Performed t Test for the mean (
Performed Z Tests about a Population Proportion
Discussed critical value and p–value approaches to hypothesis testing
Type I & II errors