If grades are to be a successful signal to potential employers of a student's qualities, then higher grades must be
A) easier for high-productivity students to earn than for low-productivity students to earn.
B) easier for low-productivity students to earn than for high-productivity students to earn.
C) easy for employers to check.
D) used for all future promotions within the firm.
E) often referred to in the hiring process.
A
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Interpreting the intercept in a sample regression function is
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