By Chuck Mikolajczak NEW YORK (Reuters) – U.S. stocks lost ground on Monday, with the major indexes closing out a strong month of gains on a weaker foot, as investor focus turned to the Federal Reserve’s policy meeting this week. The central bank is widely expected to raise interest rates by 75 basis points on Wednesday at the conclusion of its two-day policy meeting, but investors will look for any signals the Fed may be considering a deceleration in interest rate hikes in the future. Hopes the Fed may pull back from its aggressive interest rate hike policy have lifted equities in recent week…