Concept explainers
Going for it on fourth-down in the NFL Each week coaches in the National Football League (NFL) face a decision during the game. On fourth-down, should the team punt the ball or go for a first-down? To aid in the decision-making process, statisticians developed a regression model for predicting the number of points scored (y) by a team that has a firstdown with a given number of yards (x) from the opposing goal line (Chance, Winter 2009). One of the models fit to data collected on five NFL teams from a recent season was the simple linear regression model, E (y) = β0 + β1x. The regression yielded the following results:
a. Give a practical interpretation of the coefficient of determination, r2.
b. Compute the value of the coefficient of
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