Final answer:
While the exact name of the Washington-based group calling Wal-Mart's business practices into question isn't provided, there have been prominent legal issues regarding Wal-Mart's labor and sex-discrimination practices, including a large class-action lawsuit.
Step-by-step explanation:
The Washington-based group created to call Wal-Mart's business practices into question is not mentioned explicitly in the provided material. However, it is clear that labor practices and issues of sex-discrimination have been a significant and recurring problem for Wal-Mart.
There have been extensive legal battles, including one of the largest class-action sex-discrimination cases in U.S. history, involving 1.2 million female employees. The case focused on claims of wage and promotion discrimination.
Specifically, Wal-Mart was found guilty in 2013 by the National Labor Relations Board of illegally penalizing and firing workers who took part in labor protests and strikes. Additionally, Wal-Mart has paid $11.7 million in back wages and compensatory damages to women in Kentucky who were denied jobs because of their sex.
Furthermore, after the Supreme Court dismissed the nationwide class action lawsuit in 2011 due to the size and diversity of the group, lawyers for the women have been attempting to sue in smaller, more focused groups.