(Solved): (a) Find the equation of the least squares regression line that describes the relationship y= Perce ...

(a) Find the equation of the least squares regression line that describes the relationship $y=$ Percent reporting less than 7 hours of sleep and $x=$ Representative age. $\hat{y}=$ (b) Calculate the five residuals. Construct a residual plot. Construct a residual plot. i) i) recommend using a curve rather than a line? What aspect of the residual plot supports your decision? The residual plot suggests using the least squares regression line rather than a curve because there is a pronounced curved pattern in the residuals. The residual plot suggests using a curve rather than the least squares regression line because there is a pronounced curved pattern in the residuals.