Hypothesis Testing What's Hypothesis Testing(假设检验) Hypothesis testing is the statistical assessment of a statement or idea regarding a population. A hypothesis is a statement about the value of a population parameter level developed for the purpose o…
Case Study The case study Physicians' Reactions sought to determine whether physicians spend less time with obese patients. Physicians were sampled randomly and each was shown a chart of a patient complaining of a migraine headache. They were then as…
Manual testing is a logical approach and automation testing complements it. So both are mandatory and required to ensure the quality. To test and prepare for the testing and automation interviews, enough material is provided here. 300+ testing and au…
Heterogeneous Face Attribute Estimation: A Deep Multi-Task Learning Approach 2017.11.28 Introduction: 人脸属性的识别在社会交互,提供了非常广泛的信息,包括:the person’s identity, demographic (age, gender, and race), hair style, clothing, etc. 基于人脸属性识别的场景也越来越多,如:(i)video Surve…
I learned A/B testing from a Youtube vedio. The link is https://www.youtube.com/watch?v=Bu7OqjYk0jM. I will divide the note into two parts. The first part is generally an overview of hypothesis testing. Most concepts can be found in the article "Sta…
9.1 The Nature of Hypothesis Testing Over the years, however, null hypothesis has come to mean simply a hypothesis to be tested. Null Hypothesis: H0: μ = μ0, where μ0 is some number Alternative Hypothesis: two tailed 实例: one tailed 实例: 评判标准: Type I a…
