Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 10 - Correlation and Regression - 10-6 Nonlinear Regression - Basic Skills and Concepts - Page 553: 2

Answer

Quadratic, no.

Work Step by Step

The best model has the highest $R^2$ value, hence the answer is quadratic. The $R^2$ value is not too high, hence the best model is not a good model. Hence the results suggest that it is impossible to predict the number of points in a certain year's Super Bowl.
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