Use the given data to find the best predicted value of the response variable.
-Eight pairs of data yield $\mathrm { r } = 0.708$ and the regression equation $\hat { y } = 55.8 + 2.79 x$. Also, $\bar { y } = 71.125$ What is the best predicted value of $y$ for $x = 9.9 ?$
A) 71.13
B) 83.42
C) 555.21
D) 57.80

Question

Quizplus · Accepted Answer

The best predicted value of $y$ for $x = 9.9$ is found by substituting $x = 9.9$ into the regression equation: $\hat{y} = 55.8 + 2.79(9.9) = 83.42$.

Use the Given Data to Find the Best Predicted Value r=0.708\mathrm { r } = 0.708r=0.708

Use the Given Data to Find the Best Predicted Value $\mathrm { r } = 0.708$