Understand the Relationship Between the Correlation and the Regression Line

Multiple Choice

Understand the relationship between the correlation and the regression line.
-A company studying the productivity of their 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) .779
B) -.236
C) .575
D) -.929
E) -.779