A Company Studying the Productivity of Their Employees on a New

question 64

Multiple Choice

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 . $$\text { If } s _ { x } = 14.04 \text { and } s _ { y } = 2.61 \text {, then the correlation coefficient between age and productivity is }$$

• A) .779
• B) -.236
• C) .575
• D) -.929
• E) -.779

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