Data from a sample of n = 150 quail eggs were used to fit a multiple regression
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and R2 = .996.
a. Carry out a model utility test to determine if this multiple regression model is useful.
b. A simple linear regression model was also used to describe the relationship between y and x1, resulting in the estimated regression function 6.254 1 1.387x1. The P-value for the associated model utility test was reported to be less than .01, and R2 5 .994. Is the linear model useful? Explain.
c. Based on your answers to Parts (a) and (b), which of the two models would you recommend for predicting eggshell surface area? Explain the rationale for your choice.
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a 1 The model is y a b1x1 b2x2 b3x3 e where y surface area x1 weight x2 width and x3 length 2...View the full answer
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Related Book For 
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore
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