which model uses squared residuals which regression models use the squared residual model of the white test? why an auxiliary model is used in regression tests what is an auxiliary model in the white test why use an auxiliary model in regression why do we use regression for simple residuals which model is auxiliary why do we use the auxiliary model in the white test? why do we use auxiliary models in white testing what is auxiliary model in white test what is the auxiliary regression why auxiliary regression why use an auxiliary model to determine residuals? what's the difference between auxiliary versus auxiliary regression tests auxiliary regression model why in the white test, we estimate auxiliary regression model of the squared residuals (in the original model) and not just plain residuals what model is used for regression in the white test? what is an auxiliary regression model which test is an auxiliary regression model what is the auxiliary model used for?