A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following statements must be true? (A) The correlation coefficient of the data is positive. (B) The sum of the residuals for the data based on the regression line is positive. (C) A scatterplot of the data would show a linear pattern. (D) The slope of the sample regression line is 1.348. (E) The slope of the sample regression line is 0.
A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following statements must be true? (A) The correlation coefficient of the data is positive. (B) The sum of the residuals for the data based on the regression line is positive. (C) A scatterplot of the data would show a linear pattern. (D) The slope of the sample regression line is 1.348. (E) The slope of the sample regression line is 0.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 5PPS
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Transcribed Image Text:A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the
following statements must be true?
(A) The correlation coefficient of the data is positive.
(B) The sum of the residuals for the data based on the regression line is positive.
(C) A scatterplot of the data would show a linear pattern.
(D) The slope of the sample regression line is 1.348.
(E) The slope of the sample regression line is 0.
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