Recent set of dismal outlooks from companies including FedEx Corp FDX.N and Ford Motor Co F.N have raised concerns about the health of corporate America. By Sruthi Shankar and Medha Singh Sept 22 (Reuters) - Wall Street futures were muted on Thursday as investors assessed the impact on U.S. economic growth from the Federal Reserve's unwavering focus to rein in inflation through aggressive interest rate hikes. Goldman Sachs, Barclays and a bunch of investment banks have raised their estimates for U.S. policy rates following Fed's hawkish message, with Societe Generale economists also projecting a mild recession in early 2024.