Find the best predicted value of y corresponding to the given value of x.
-The regression equation relating attitude rating $( \mathrm { x } )$ and job performance rating $( \mathrm { y } )$ for the employees of a company is $\hat{y} = 11.7 + 1.02 x$. Ten pairs of data were used to obtain the equation. The same data yield $r = 0.863$ and $\bar { y } = 80.1$. What is the best predicted job performance rating for a person whose attitude rating is 73 ?
A) $80.1$
B) $12.6$
C) $86.2$
D) $84.9$

Question

Quizplus · Accepted Answer

The predicted job performance rating is calculated by substituting $x = 73$ into the regression equation: $\hat{y} = 11.7 + 1.02 \times 73 = 86.26$, which rounds to 86.2.

Find the Best Predicted Value of Y Corresponding to the Given