The data in the accompanying table are from the paper Six Minute Walk Test in Children and
Question:
a. With x = representative age and y = median distance walked in 6 minutes, construct a scatterplot. Does the pattern in the scatterplot look linear?
b. Find the equation of the least squares regression line.
c. Compute the five residuals and construct a residual plot. Are there any unusual features in the residual plot?
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