Chapter 12, Problem 4PT

To determine

To find: for such players, the correlation between total wins and average number of putts each hole is.

Answer to Problem 4PT

r = -0.285

Explanation of Solution

Given:

  

In the output, the square of the linear correlation factor r is given as

For R-Sq:

  $r^2$ = 8.1% = 0.081

The slopes of the regression line of least-squares is provided as -4139198 in the output. Because the slope is negative the coefficient with linear correlation r must also be negative. The linear coefficient of correlation r is then the negative square root of $r^2$

  $r=-\sqrt{r^2}=-\sqrt{0.081}=-0.285$

Hence, the correct option is (a)