The following stock quotations were recently reported in The Wall Street Journal:...

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?

b. What possible explanation can you give for the differences in the common stock dividend yields observed in part a?

c. What is the current price–earnings ratio for Boeing and Johnson & Johnson?

d. What possible explanation can you give for the differences in the price–earnings ratios observed in part c?

e. What was the previous day’s closing price for AT&T’s common stock?