A company studying the productivity of its employees on a new information system was interested in determining if the age (X) of data entry operators influenced the number of completed entries made per hour (Y). The regression equation is yˆ = 14.374 - 0.145x . If sx=14.04 and sy=2.61, then the correlation coefficient between age and productivity is: A. 0.779 B. -0.236 C. 0.575 D. -0.929 E. -0.779