A forester seeking information on basic tree dimensions obtains the following measurements of the diameters 4.5 feet

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A forester seeking information on basic tree dimensions obtains the following measurements of the diameters 4.5 feet above the ground and the heights of 12 sugar maple trees (courtesy of A. Ek). The forester wishes to determine if the diameter measurements can be used to predict the tree height.
(a) Plot the scatter diagram and determine if a straight line relation is appropriate.
(b) Determine an appropriate linearizing transformation. In particular, try x€² = log x, y€² =
log y.
(c)Fit a straight line regression to the transformed data.
A forester seeking information on basic tree dimensions obtains the

(d) What proportion of variability is explained by the fitted model?

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Statistics Principles And Methods

ISBN: 9780470904114

7th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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