The following stock quotations were recently reported in The Wall Street Journal: a. What are the dividend yields on the common stock of AT\&T, Boeing, and Johnson \& Johnson? Round your answers to one decimal place. AT\&T: % Boeing: % Johnson \& Johnson: % b. What is the current price-earnings ratio for Boeing and Johnson \& Johnson? Round your answers to the nearest whole number. Boeing = times Johnson \& Johnson = times c. What was the previous day's closing price for AT\&T's common stock? Round your answer to the nearest cent. $