The file P08_18.xlsx contains information on the following items about 24 companies: EBITASS (earnings before income and taxes, divided by total assets), ROTC (return on total capital), and Group (1 for most admired companies and 2 for least admired companies). Use these data to develop a rule that can be used to classify a company as a most admired or least admired company. Which variable appears to be most important for this classification?