You run a regression analysis on a bivariate set of data ( n = 91 n = 91 ). With ¯ x = 80.4 x ¯ = 80.4 and ¯ y = 68.9 y ¯ = 68.9 , you obtain the regression equation

Question

y=−1.083x−29.779y=-1.083x-29.779with a correlation coefficient of r=−0.645r=-0.645. You want to predict what value (on average) for the response variable will be obtained from a value of 120 as the explanatory variable.

What is the predicted response value? 

Answer 1

-1.083 * 120 - 29.779

= -159.739