Problem
Question 5 1 pts A quadratic regression is done on a data set. The equation for the regression is \( f(x)=0.326 x^{2}+ \) \( 0.444 x+9.301 \). Using the regression equation, make an estimate for the \( y \) value when \( x=6 \)
Solution
Step 1 ：Step 1: Plug in x=6 into the regression equation f(x)=0.326x^2+0.444x+9.301
Step 2 ：Step 2: Calculate f(6)=0.326(6)^2+0.444(6)+9.301
Step 3 ：f(6)=19.818
