* Trade-exposed tech stocks jump * Boeing slips on 737 MAX production concerns * Healthcare sector propped up by UnitedHealth, Amgen * Indexes up: Dow 0.48%, S&P 0.79%, Nasdaq 0.99% (Updates to late afternoon, changes byline, adds NEW YORK to dateline) By April Joyner NEW YORK, Dec 16 (Reuters) – Wall Street hit record highs for the third straight session on Monday as cooling trade tensions between Washington and Beijing and upbeat economic data from China boosted investor sentiment. U.S. stocks continued their ascent as Friday’s announcement of an interim trade deal between the world’s two biggest economies lifted prospects for the global economy. Though growth in China is expected to continue moderating, the trade developments have brightened the country’s economic outlook, several analysts have said. Adding to such optimism, data released early on Monday showed that China’s industrial output and retail sales growth accelerated in November. The U.S.-China trade deal suspended tariffs scheduled to go into effect on Dec. 15 on a variety of consumer products, including Apple Inc’s iPhone. Apple shares rose 1.8% and provided the biggest boost to the S&P 500 and Nasdaq . Shares of chipmakers, among the most trade-sensitive stocks, also rose. The Philadelphia SE…