<p>NEW YORK—All eyes on Wall Street and at the Federal Reserve will be on Friday morning's critical August jobs report, the last major reading on the economy before the central bank meets later this month to decide whether it's finally time to raise interest rates for the first time in nearly a decade.</p><p>It's a highly delicate time for the Fed following weeks of market turmoil and central bank officials giving mixed signals on whether they might make a move this month, a decision with profound economic and political ramifications.