WINTER PARK, Fla.--(BUSINESS WIRE)--Ruth's Hospitality Group, Inc. (NASDAQ:RUTH) today announced that it will host a conference call to discuss first quarter 2015 financial results on Friday, May 1, 2015 at 8:30 AM Eastern Time. A press release with first quarter 2015 financial results will be issued at approximately 7:00 AM Eastern Time that same day. The conference call can be accessed live over the phone by dialing 719-325-2402. A replay will be available one hour after the call and can be a