Suppose that we determine that there is not an interaction between demographic group and income with respect to spending. Which method below is the best way to proceed? Question 15 options: Conclude that demographic group is not correlated with spending, so omit demographic group from the analysis. Create a new model without an interaction term, and use the new model to create interpretations of the trends in the data. Analyze the relationship between income and spending separately for each demographic group separately (with separate models for each group). Conclude that the model is not an accurate representation of the trends in the data