The scatter plot and residual plot shown below is from a regression analysis of Prehistoric Native American projectile points. The widths of the projectiles were regressed on the length of the projectile points. Using these plots categorize each of the Basic Assumptions of the simple linear regression model as one of the following:
a) Not checkable
b) Checked and met
c) Checked and not met
For all assumptions checked, explain what aspect of the graphs led you to your conclusion that the assumption was met or not met.

Question

The scatter plot and residual plot shown below is from a regression analysis of Prehistoric Native American projectile points. The widths of the projectiles were regressed on the length of the projectile points.   Using these plots categorize each of the Basic Assumptions of the simple linear regression model as one of the following: 
a) Not checkable 
b) Checked and met 
c) Checked and not met 
For all assumptions checked, explain what aspect of the graphs led you to your conclusion that the assumption was met or not met.

Quizplus · Accepted Answer

The Answer of The scatter plot and residual plot shown below is from a regression analysis of Prehistoric Native American projectile points. The widths of the projectiles were regressed on the length of the projectile points.   Using these plots categorize each of the Basic Assumptions of the simple linear regression model as one of the following: 
a) Not checkable 
b) Checked and met 
c) Checked and not met 
For all assumptions checked, explain what aspect of the graphs led you to your conclusion that the assumption was met or not met.

The Scatter Plot and Residual Plot Shown Below Is from a Regression