CHESAPEAKE, Va.--(BUSINESS WIRE)--Dollar Tree, Inc. (NASDAQ: DLTR), North America's leading operator of discount variety stores, today announced its participation in the Goldman Sachs 22nd Annual Global Retailing Conference on September 9, 2015. Bob Sasser, Chief Executive Officer, Kevin Wampler, Chief Financial Officer, and Randy Guiler, Vice President – Investor Relations, will attend this conference. The Company's presentation will begin at 11:20 a.m. ET on September 9, 2015. A webcast of th