DuPont system of analysis Use the following 2016 financial information for ATT and Verizon to conduct a DuPont system of analysis for each company. Sales Earnings available for common stockholders Total assets Stockholders' equity ATT $163,800 13,233 404,021 124,310 Verizon $126,080 13,908 244,180 24,132 a. Which company has the higher net profit margin? Higher asset turnover? b. Which company has the higher ROA? The higher ROE? a. Net profit margin (Round to three decimal places.) ATT Verizon Net profit margin