Eric Rosengren still expects the Federal Reserve to raise interest rates this year despite what the head of the Boston Fed called a “weak” September jobs report, which could signal a more significant economic slowdown that delays the policy tightening. In a Reuters interview, Rosengren said the slowdown in hiring last month effectively heightens his sensitivity to the economy’s performance the rest of the year. If it grows at less than a 2-percent pace, or if unemployment rises from 5.1 percent now, he would probably prefer to wait until next year for the much-anticipated rate hike.