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🧪 Introduction To Hypothesis Testing

🥊 Null V/S Alternative Hypothesis

Parameter Null Hypothesis Alternative Hypothesis
Definition A null hypothesis is a statement in which there is no relation between the two variables. An alternative hypothesis is a statement in which there is some statistical relationship between the two variables.
What is it? Generally, researchers try to reject or disprove it. Researchers try to accept or prove it.
Testing Process Indirect and Implicit Direct and Explicit
p-value Null hypothesis is rejected if the p-value is less than the alpha-value; otherwise, it is accepted. An alternative hypothesis is accepted if the p-value is less than the alpha-value otherwise, it is rejected.
Notation \(H_0\) \(H_1\)
Symbol Used Equality Symbol (=, ≥, ≤) Inequality Symbol (≠, <, >)

Tree VS Regression Models

Tree based models and Regression models are widely used Machine Learning models. So more you know about them is better for you. Also, many concepts from these models are borrowed by advance Machine Learning models like Gradient Boosting, XGBoost, etc.

These models are also great choice for :fontawesome-user-tie: interviewers so from these models they ask many interview questions. This blog mainly focuses on tree based models.