why check assumptions in regression model why do people test assumptions on raw data does a regression model assume error why do regression models make assumptions why do people check for assumptions on raw data why do people check residual assumptions why do we test assumptions of regression models which of the following assumptions makes sense for a regression model? why does regression model include residuals which model makes assumptions on raw data and which model makes assumptions on residuals why does regression analysis require assumptions why does regression modelling assume error why check assumptions how important is it for a regression model why do you check regression model assumptions and not raw test why do we check assumptions when testing regression models with raw data? why should we check model assumptions on the residual what assumptions do regression models make? what does the residual assumption do in regression why do people test assumptions on the residuals of an experiment?