Lab 3
Luigi Wellner
WBS Structure
Used data from the STRATA-2P data set
Data set #1
Using formula y = a * x + b
Scatterplot A
Residual Plot A
Data Set #2
Formula y = a * x ** 2 + b * x + c
Scatterplot 2
Residual Plot 2
Reason for function
The reason why the quadratic equation was chosen to compare to the linear equation was that
the linear equation did not relate to the curvilinear properties of the graph. With the quadratic
equation.
The two models visually were very similar visually with the scatterplots and the residual plots
being very similar among one another. However, the RSS Value for the quadratic graph was
1.312 while the linear graph RSS was 1.693. Since the RSS for the quadratic formula was lower
the quadratic model was a better fit