Chapter 3.2, Problem 73E

To determine

To find: The equation of the least square regression line using the provided output.

Answer to Problem 73E

The least-square regression line is: $\widehat{y}=87.974-0.060934x$

Explanation of Solution

Given:

The output is:

  

Concept used:

The regression equation is written as:

  $\begin{array}{l}\widehat{y}=a+bx\\ a=\text{ Intercept coefficient}\\ b=\text{ Slope coefficient}\end{array}$

Calculation:

Here, x is average driving distance and y is scoring average.

Using the provided output, the equation of the regression line could be written as:

  $\begin{array}{l}\widehat{y}=a+bx\\ \widehat{y}=87.974-0.060934x\end{array}$

So, the equation of the regression line is $\widehat{y}=87.974-0.060934x$ .

Hence, the correct option is (c).