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 = 2.00. The given statistics are summarized from paired sample data.
a. r = -0.882, y = 3.57, n = 15, and the equation of the regression line is = 23.00 - 8.00*.
b. r = 0.187, y = 9.33, n - 60, and the equation of the regression line is = 4.00 + 8.00*.