In that context, here are some of the data that demonstrate the company's policies toward women. They show that women at Wal-Mart nationwide are systematically paid less than men, hold lower-ranked positions, and are more likely to be hourly workers instead of salaried---even though the average female worker at Wal-Mart has worked at the company significantly longer than the average male worker.
Women make less than men, particularly women who are in salaried positions:
This despite the fact that women have, on average, much longer tenure at the company than men:
Meanwhile, women dominate the lowest-paying, lowest-ranked jobs at Walmart:
Check out even more data in the case against Wal-Mart here. The case, had the Supreme Court allowed it to continue, would have been the largest class-action discrimination case in US history.