Show me how to find y-hat with this example step by
step pls (multiple regression)
y x1 19 43 24 49 30 51 29 54 19 42 25 53 31 58 27 52 22 49 25 53 251 504 Sum: Mean: 25.10 50.40 x2 29 28 37 31 30 23 27 30 23 24 282 28.20 x3 x1^2 x2^2 x3^2 x1x2 x1x3 x2x3 x1y x2y x3y y_hat y-y_hat sq
