Chapter 27, Problem 11E

To determine

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

Answer to Problem 11E

  $(1.1782,3.4210)$

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.

  $\begin{array}{l}(2.29959-2\times 0.5607,2.29959+2\times 0.5607)\\ (1.1782,3.4210)\end{array}$