statsmodels.treatment.treatment_effects.TreatmentEffectResults.conf_int# TreatmentEffectResults.conf_int(alpha=0.05)# Return the confidence interval of the value, effect of the constraint This is currently only available for t and z tests. Parameters: alphafloat, optionalThe significance level for the confidence interval. ie., The default alpha = .05 returns a 95% confidence interval. Returns: cindarray, (k_constraints, 2)The array has the lower and the upper limit of the confidence interval in the columns.