US stocks dipped on Tuesday as investors are bracing for Federal Reserve’s monetary policy decision, to be announced on Wednesday. It is widely anticipated that the US central bank will leave key interest rates unchanged. The S&P 500 lost 9.84 points, or 0.22%, at 4,443.69 points. The Nasdaq Composite fell 32.05 points, or 0.23%, at 13,677.80. The Dow Jones Industrial Average dropped 106.46 points, or 0.31%, at 34,517.84. Shares of Walt Disney slid 3.6% after announcing that it would nearly double its capital expenditure for its parks business over the next 10 years. Auto parts retailer AutoZone slipped 1.9% despite...