In a June 17, 2015, press conference, Fed Chair Janet Yellen indicated the possibility of the Fed raising interest rates by the end of the year. On this date, the federal funds rate target set by the Fed was 0.00 – 0.25 percent, where it had been since January 2009. What has happened to the Fed’s target for the federal funds rate since June 2015? Using the Fed rule, explain the Fed’s decision to either change or not change the interest rate.