ATT <T> COST-CUTTING EFFORTS ON TARGET American Telephone and Telegraph Co chairman James E. Olson said he is very pleased with the company's efforts so far to cut costs. He told a meeting of securities analysts that, although the company is not yet at point in its cost-cutting drive to improve profit margins, it is "on the right track." Olson said ATT's cash flow was "very strong in the first two months of the year, better than budgeted." While Olson does not know if the company's earnings and revenues will improve by yearend, he said ATT is "moving in the proper direction." For 1986, ATT's earnings dropped to 139 mln dlrs, or five cts a share, on revenues of 34.1 billion dlrs, from 1.56 billion dlrs, or 1.37 dlrs a share, on revenues of 34.4 billion dlrs in 1985. During 1986 ATT took 3.2 billion dlrs in charges from expenses related to reducing its work force by 32,000.