By Chuck Mikolajczak NEW YORK (Reuters) – The S&P 500 ended lower on Tuesday as the index was unable to bounce from a sharp sell-off in the prior session with a key policy statement from the Federal Reserve on deck that will reveal how aggressive the central bank’s policy path will be. Analyst expectations had largely been predicting the Fed would hike by 50 basis points at the conclusion of its meeting on Wednesday. However, views that a 75 basis point hike was on the table have been growing after Friday’s higher-than-expected consumer price index (CPI) data for May. In addition, a report fro…