In the midst of labor negotiations, the CEO of a company argues
that the company’s blue-collar workers, who are paid an average of
$30,000 a year, are well paid because the mean annual income of all
blue-collar workers in the country is less than $30,000. That
figure is disputed by the union, which does not believe that the
national mean blue-collar income is less than $30,000. An
arbitrator draws a random sample of 150 blue-collar workers from
across the country...