Suppose a researcher regressed surgical patients Solution I think i had answered the first part of your question before, continuing from there, our regression equation was y(cap) = 9.8 - (0.10)* x pluggin in the four values of given x, we can easily get the predicted values of y hence a) x = 42 => y cap = 9.8 - 4.2 = 5.6 b) x = 68, => y cap = 9.8 - 6.8 = 3.0 c) X = 23 => y cap = 9.8 - 2.3 = 7.5 d) x = 10, => y cap = 9.8 - 1.0 = 8.8.