T3.13 Long-term records from the Serengeti NationalPark in Tanzania show interesting ecological relationships.When wildebeest are more abundant, they graze themore heavily, so there are fewer fires and more trees grow.Lions feed more successfully when there are more trees, sothe lion population increases. Researchers collected dataon one part of this cycle, wildebeest abundance (in thou-sands of animals) and the percent of the grass area burnedin the same year. The results of a least-squares regressionon the data are shown here.27grass0680-706050-40-30-20-10-15001000Wildebeest (1000s)5007501250Percent burned Residuals Versus Wildebeest (1000s)(response is Percent burned)40-30-20-10--10--20-30-500750wildebeest (1000s)100012501500PredictorCoefSE CoefConstant92.2910.069.170.000Wildebeest (1000s) -0.05762 0.01035-5.560.000S = 15.9880 R-Sq = 64.6% R-Sq(adj) = 62.5%%3D%3D(a) Give the equation of the least-squares regression line.Be sure to define any variables you use.(b) Explain what the slope of the regression line means inthis setting.(c) Find the correlation. Interpret this value in context.(d) Is a linear model appropriate for describing the relation-ship between wildebeest abundance and percent of grass areaburned? Support your answer with appropriate evidence.Rasidnl

Answered: T3.13 Long-term records from the…

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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T3.13 Long-term records from the Serengeti National Park in Tanzania show interesting ecological relationships. When wildebeest are more abundant, they graze the grass more heavily, so there are fewer fires and more trees grow. Lions feed more successfully when there are more trees, so SO