Covariance Matrix, Regression Analysis, Standard Error, Confidence Interval, Hands On Tutorials.
(-0.009330) +/- (0.005203032) = [-0.014533032, -0.004126968] This closely matches the 95% CI for Curb_Weight reported by statsmodels in the training summary: 95% CI reported by Statsmodels (Image by Author) Let’s also compare the standard errors reported by Statsmodels and the corresponding ones we