Economic data for May support rosy '83 forecast

The government's leading economic indicators posted a solid gain of 1.2 percent in May, the Commerce Department said. It was the 11th consecutive monthly rise. The gain supported President Reagan's report that the economy would grow by 5.5 percent this year, compared with the administration's earlier prediction of 4.7 percent growth.

Meanwhile, the index of help-wanted advertising rose seven points in May, the largest gain in more than three years.