Foresters want to estimate the average age of trees in a stand. Determiningage is cumbersome because one needs to count the tree rings on a coretaken form the tree. In general, though, the older the tree, the largerthe diameter, and diameter is easy to measure. The foresters measurethe diameter of all 1132 trees and find that the population mean equals10.3. They then randomly select 120 trees for age measurement.Tree No. Diameter, x Age, y Tree No. Diameter, x Age, y112.0125115.76111.4119128.08037.9831310.311449.0851412.0147510.599159.21227.9117168.510677.369177.08210.21331810.7889.11.7154199.3971011.3168208.299(a) Draw a scatterplot of y vs. r.(b) Estimate the population mean age of trees in the stand usingratio estimation and give an approximate standard error for yourestimate.(c) Repeat (b) using regression estimation.(d) Label your estimates on your graph. How do they compare?

Answered: Image /qna-images/answer/a6b07076-c383-4fef-8f16-5dd205254771.jpg

Answered: t to estimate the average age of trees…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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