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Understand the Relationship Between the Correlation and the Regression Line

question 3

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

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The group of people typically responsible for the buying decisions in large organizations.

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