i. Create a quadratic model: thergh j. What is the R2 value? What does this tell you about the relationship between x and y? k. Do a scatterplot of Y1 and the data. What does that tell you about the quadratic model? 1. Store the predictions in L3 and the Residuals in L4. m. Do a scatterplot of X-values vs Residuals. When doing this plot, first Deselect Y1. Sketch the plot here. What does this tell you about the quadratic model? n. Look at the Residual plot and use the Trace Key to find the 'largest' residual (it could be positive or negative.) Go back to your Stat Editor and find the corresponding x- value, y-value and predicted y-value.
i. Create a quadratic model: thergh j. What is the R2 value? What does this tell you about the relationship between x and y? k. Do a scatterplot of Y1 and the data. What does that tell you about the quadratic model? 1. Store the predictions in L3 and the Residuals in L4. m. Do a scatterplot of X-values vs Residuals. When doing this plot, first Deselect Y1. Sketch the plot here. What does this tell you about the quadratic model? n. Look at the Residual plot and use the Trace Key to find the 'largest' residual (it could be positive or negative.) Go back to your Stat Editor and find the corresponding x- value, y-value and predicted y-value.
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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