How do I check the assumptions of regression?
An example of an AI chatbot conversation about checking regression assumptions.
How do I check the assumptions of regression?
To check the assumptions of regression, you typically look at linearity, independence, homoscedasticity, and normality of residuals.
What is linearity in this context?
Linearity means that the relationship between the independent and dependent variables should be linear. You can check this with scatter plots.
How do I test for homoscedasticity?
You can test for homoscedasticity by plotting the residuals against the predicted values. They should be randomly scattered.
What if the assumptions are violated?
If assumptions are violated, you may need to transform your data, use robust regression methods, or consider different modeling techniques.
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