Exercise

More than natural variation?

Let's see if the apparent trend in the plot is something more than natural variation. Fit a linear model called m_bty to predict average professor score by average beauty rating and add the line to your plot using abline(m_bty).

Instructions

100 XP

Construct the linear model m_bty.
Add the linear model to the plot with the help of abline(m_bty).
Write out the equation for the linear model yourself, and interpret the slope.