Polynomial Regression Comparison Tool
Upload your datasets or enter values manually to compare two polynomial regression models at 5% significance level.
Model 1
Click to browse files
Model 2
Click to browse files
How to Compare Polynomial Regressions
To statistically compare two polynomial regression models at 5% significance level:
- Fit both models to your data
- Use an F-test to compare the residual sum of squares (RSS)
- Calculate the F-statistic:
F = [(RSS1 - RSS2)/(p2 - p1)] / [RSS2/(n - p2)] - Compare to the F-distribution with (p2-p1, n-p2) degrees of freedom
- Reject the null hypothesis (that models are equivalent) if p-value < 0.05
Tip: Ensure your models are nested (one is a special case of the other) for valid F-test comparison.