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ELEMENTARY STATISTICS W/MYMATHLAB<CUSTM
7th Edition
ISBN: 9781323839577
Author: Larson
Publisher: Pearson Custom Publishing
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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
(c) x1 = 376, x2 = 226, x3 = 124
(d) x1 = 231, x2 = 135, x3= 86
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Chapter 9 Solutions
ELEMENTARY STATISTICS W/MYMATHLAB<CUSTM
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