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Errors and residuals in statistics

Ch 12 Test written for Practice of Statistic (Starnes,Yatess and Moore) 4th ed.

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Chapter 12 Test name_________________ Honors Statistics 1. Which of the following would provide evidence that inference procedures for linear regression would be safe to use?? ?A. The scatterplot of the original data displays a nonlinear relationship between the explanatory variable and the response variable. ?B. A scatterplot of the residuals against the values of the explanatory variable displays a random scattering of points about the regression line, with roughly constant variation about the line as we move from left to right. ?C. A stem-and-leaf plot of the residuals displays a clearly skewed distribution. For questions 2-4
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