Earnings reports from Ralph Lauren (RL) and Hanesbrands (HBI) on Wednesday will give investors a clearer picture of how premium apparel retailers fared during the holiday selling season. Ralph Lauren is expected to report a 17% jump in EPS as sales edged up 2.2% to $2.45 billion when it reports fiscal third-quarter earnings before the market opens. Leather goods maker Coach (COH) and Tiffany & Co. (TIF) earlier reported wary consumers, with both