By STAN CHOE and ALEX VEIGA, AP Business Writers A week of volatile swings on Wall Street ended Friday with more losses for stocks, as a mixed batch of U.S. job market data triggered another bout of dizzying trading. The S&P 500 closed 0.8{1b90e59fe8a6c14b55fbbae1d9373c165823754d058ebf80beecafc6dee5063a} lower after erasing a 0.7{1b90e59fe8a6c14b55fbbae1d9373c165823754d058ebf80beecafc6dee5063a} gain […]