Consider the following residual plot for the least squares regression line of y versus x. 10- 5- -5- -10 4 6 8 10 12 14 X Which of the following is an appropriate conclusion based on the residual plot? (A) There is a pattern in the residual plot, so there will not be a linear trend in the scatterplot of y versus .x. (B) There is a strong, positive linear relationship between x and y because there is no pattern in the residual plot. (C) Because there is no pattern in the residual plot, there will be a linear trend apparent in the scatterplot of y versus x. (D) There will be a linear trend apparent in the scatterplot of y versus x, but the data values will tend to fall closer to the regression line for smaller values of x than for larger values of x. (E) Because none of the residuals equal zero, the least squares regression line will not be useful for prediction.
Consider the following residual plot for the least squares regression line of y versus x. 10- 5- -5- -10 4 6 8 10 12 14 X Which of the following is an appropriate conclusion based on the residual plot? (A) There is a pattern in the residual plot, so there will not be a linear trend in the scatterplot of y versus .x. (B) There is a strong, positive linear relationship between x and y because there is no pattern in the residual plot. (C) Because there is no pattern in the residual plot, there will be a linear trend apparent in the scatterplot of y versus x. (D) There will be a linear trend apparent in the scatterplot of y versus x, but the data values will tend to fall closer to the regression line for smaller values of x than for larger values of x. (E) Because none of the residuals equal zero, the least squares regression line will not be useful for prediction.
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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