Conditions for regression inference: Linear relationship, independent observations, Normal responses (for each x, y-values are normally distributed), Equal variance (constant spread of residuals), and Random sample — summarized as LINE-R.
How to apply it: Check conditions using a residual plot (linearity and equal variance), a histogram of residuals (normality), and the study design (independence and randomness).
Course: AP Statistics · Unit: Inference for Quantitative Data: Slopes
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