In each of the following cases, find the best predicted value of y given that x =

Question:

In each of the following cases, find the best predicted value of y given that x = 3.00. The given statistics are summarized from paired sample data.
a. r = 0.931, y = 7.00, n = 10, and the equation of the regression line is = 4.00 + 2.00x.
b. r = -0.033, y - 2.50, n = 80, and the equation of the regression line is = 5.00 - 2.00*.