Elementary Statistics: Picturing the World (7th Edition)

7th Edition

ISBN: 9780134683416

Author: Ron Larson, Betsy Farber

Publisher: PEARSON

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Textbook Question

Chapter 9.4, Problem 4E

Predicting y-Values In Exercises 1−4, use the multiple regression equation to predict the y-values for the values of the independent variables.

4. Elephant Weight The equation used to predict the weight of an elephant (in kilograms) is

ŷ = −4016 + 11.5x₁ + 7.55x₂ + 12.5x₃

where X₁ represents the girth of the elephant (in centimeters), x₂ represents the length of the elephant (in centimelers), and X₃ represents the circumference of a footpad (in centimeters). (Source: Field Trip Earth)

(a) x₁ = 421, x₂ = 224, x₃ = 144

(b) x₁ = 311, x₂ = 171, x₃ = 102

(d) x₁ = 231, x2 = 135, x₃= 86

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Chapter 9.4, Problem 3E

Chapter 9.4, Problem 5E

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Chapter 9 Solutions

Elementary Statistics: Picturing the World (7th Edition)

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