What was the increase in real purchasing power associated with both 3-month Treasury bills and 30-year Treasury bonds? Assume that the current 3-month Treasury bill rate is 4.34 percent, the 30-year Treasury bond rate is 7.33 percent, and the inflation rate is 2.78 percent. Also, the chief financial officer wants a short explanation should the 3-month real rate turn out to be less than the 30-year real rate