Question

Predicting posttest scores($3.2$) What is the equation of the linear regression model relating posttest and pretest scores? Define any variables used.

Short answer

$\text{The equation of the regression line is}\hat{y}=17.897+0.78301x$

Step-by-step solution

Step 1:Given Information

It is given in the question that,

Explanation

The general equation of the regression line is written as:

$\hat{y}=a+bx$

$a$is the $Y$-intercept

$b$is the slope coefficient

The general equation of the regression line could be expressed as follows using the information provided:

$\hat{y}=a+bx$

$\hat{y}=17.897+0.78301x$.