Chapter 27, Problem 12E

To determine

To find the 95% confidence interval for the slope of the regression line.

Answer to Problem 12E

  $(0.2568,1.2864)$

Explanation of Solution

Given:

  

Formula:

Confidence interval for slope is,

  $(Coefficient(b)\mp 2\times S{E}_b)$

Using formula, 95% confidence interval for the slope of the regression line.

  $\begin{array}{l}(0.771639-2\times 0.2574,0.771639+2\times 0.2574)\\ (0.2568,1.2864)\end{array}$