Also

* Universal Health Services Inc., the biggest U.S. operator of psychiatric hospitals, said the Philadelphia district office of the Securities and Exchange Commission has begun an informal inquiry into the company.

* American Airlines will add nonstop service between New York’s John F. Kennedy International Airport and John Wayne Airport in Orange County starting April 6.

* A New York jury ruled in favor of Philip Morris USA Inc., saying the cigarette maker was not responsible for the death of Roseanne Inzerilla, 48, in 1994.

* Nielsen Media Research said it would double the number of U.S. homes in its ratings system to 10,000 over the next four years.

* Bombay Co., a seller of antique-furniture reproductions and home accessories, settled a class-action lawsuit by California store managers over wages for $1.35 million.

* DirecTV Holdings laid off 65 workers in Colorado as part of a shift to operate nationwide programming from California.

* Former Tyco International Ltd. Chief Financial Officer Mark Swartz pleaded not guilty in federal court in New Hampshire to tax evasion charges. Trial was set for April 15.