Why is it important to check the normality of residuals in regression analysis?

  • To ensure the accuracy of the model's predictive ability
  • To ensure the model is not overfitting
  • To make sure the regression line is the best fit
  • To satisfy one of the key assumptions of linear regression
It is important to check the normality of residuals in regression analysis because it is one of the key assumptions of linear regression. If the residuals are normally distributed, it validates the model's assumptions and ensures the accuracy of the hypothesis tests and confidence intervals.
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