(Interest rate parity) On August 8 th the six-month risk-free rate of interest in Switzerland was 5 percent. If the spot exchange rate for dollars for Swiss francs is 0.9241 and the six-month forward exchange rate is 0.9255 , what would you expect the U.S. six-month risk-free rate to be? The U.S. six-month risk-free rate is \%. (Round to two decimal places.)