Consider the following sample data: x : 12 23 11 20 14 y : 20 12 17 13 18 (a) Use software to construct a scatterplot and verify that estimating a simple linear regression is appropriate. (b) Use software to calculate b0 and b1. What is the sample regression equation? Predict y if x equals 15. (c) Interpret the value of the slope coefficient, b1. (d) Use software to obtain s 2 e and se. (e) Use software to obtain and interpret R2