The following graph is a residual plot derived from a scatterplot that predicted the height of girls from their ages (in years). [image attached]
(Part A) Does the residual plot indicate that a line is a good model for predicting the height of girls from their ages? Explain.
(Part B) If you were using the regression line to predict the y-value for x = 5.5 years, would your prediction most likely be too large or too small? Explain your reasoning.
