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Which of the following statements about a least-squares regression analysis is true? I. A point with a large residual is an outlier. II. A point with high leverage has a y-value that is not consistent with the other y-values in the set. III. The removal of an influential point from a data set could change the value of the correlation coefficient. I only (A) (B) II only (C) III only (D) I and III only (E) I, II, and III

Which of the following statements about a least-squares regression analysis is true? I. A point with a large residual is an outlier. II. A point with high leverage has a y-value that is not consistent with the other y-values in the set. III. The removal of an influential point from a data set could change the value of the correlation coefficient. I only (A) (B) II only (C) III only (D) I and III only (E) I, II, and III

MATLAB: An Introduction with Applications
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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Why is it that the aswer in the multiple choice is letter c?

Which of the following statements about a least-squares regression analysis is true? I. A point with a large residual is an outlier. II. A point with high leverage has a y-value that is not consistent with the other y-values in the set. III. The removal of an influential point from a data set could change the value of the correlation coefficient. (A) I only (B) II only (C) III only (D) I and III only (E) I, II, and III
Transcribed Image Text:Which of the following statements about a least-squares regression analysis is true? I. A point with a large residual is an outlier. II. A point with high leverage has a y-value that is not consistent with the other y-values in the set. III. The removal of an influential point from a data set could change the value of the correlation coefficient. (A) I only (B) II only (C) III only (D) I and III only (E) I, II, and III
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