Her research established that a white man, even if he had a felony conviction, fared better when applying for a job than a black men with no criminal record.
Recent incidents around the country have raised questions about diversity training in the hotel industry.
The Rev. Al Sharpton and other leaders are stepping into the battle over a proposed limit to the growth of for-hire vehicles, calling it a civil rights issue.
The executive used the slur twice — the second time while talking with black employees who were helping him deal with the fallout from the first time he used it, a company memo said.