Sally Randall v. Rolls-Royce Corpor

POSNER, Circuit Judge.

The plaintiffs in this class action suit on behalf of more than 500 female employees of a Rolls-Royce plant in Indiana that manufactures aircraft, industrial, and marine engines appeal from the denial of class certification and the subsequent grant of Rolls-Royce’s motion for summary judgment. (We refer to the defendants, all of which are affiliated corporations, collectively as “Rolls-Royce.”) The plaintiffs charge Rolls-Royce with sex discrimination, in violation of Title VII and the Equal Pay Act, in paying the members of the class less than comparable male employees…