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Suppose That the Regression Equation Y = 16

Question 87

Multiple Choice

Suppose that the regression equation y = 16.99 + 0.32 x1 + 0.41 x2 + 5.31 x3 predicts an adult's height (y) given the individual's mother's height (x1) ,his or her father's height (x2) ,and whether the individual is male (x3 = 1) or female (x3 = 0) .All heights are measured in inches.In this equation,the coefficient of ______ means that ______.


A) x2; if two individuals have fathers whose heights differ by 1 inch, then the individuals' heights will differ by 0.41 inches.
B) x2; if two individuals have mothers whose heights differ by 1 inch, then the individuals' heights will differ by 0.41 inches.
C) x3; a brother is expected to be 5.31 inches taller than his sister
D) x1; if two individuals have mothers whose heights differ by 0.32 inch, then the individuals' heights will differ by 1 inch.
E) x1; if two individuals have mothers whose heights differ by 0.5 inch, then the individuals' heights will differ by 0.32 inch.

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