US STOCKS-Wall St little changed ahead of next week's Fed meeting
* Oil prices fall after Goldman Sachs cuts forecast
* S&P poised for biggest weekly gain since July
* Zumiez falls after cutting third-qtr forecast
* Dow up 0.08 pct, S&P down 0.13 pct, Nasdaq down 0.08 pct (Updates to early afternoon)
By Tanya Agrawal
Sept 11 (Reuters) - Wall Street was little changed in choppy trading on Friday as economic data further clouded the outlook for interest rates ahead of the Federal Reserve's policy meeting next week.
Still, the S&P 500 was poised for its biggest weekly gain since July.
Gains in health stocks helped offset declines in the energy sector. Gilead was the biggest boost to the S&P and the Nasdaq after the company's $10 billion debt offering this week fueled speculation that it was planning a big acquisition.
Stocks have been volatile since China devalued its currency in August amid concerns of sputtering growth in the world's second-largest economy. The S&P 500 has had moves of at least 1 percent in 11 sessions since Aug. 20. Continuación...