The human resources (hr) department at an it service provider would like to use internal data on their sales employees to better screen applicants for sales positions. historically, the hr department has preferred to hire applicants with a college degree for this position. in internal data, current and past salespeople at the company with and without a college education are equally productive. suppose this measure of productivity is the only relevant performance metric and that there are a significant number of salespeople both with and without a college a degree represented in the internal data. do the data imply that the hr department should drop their preference for college-educated salespeople? why or why not?