Question

Repeat parts (a)–(e) of Exercise 15.23, but using the interception percentage as the independent variable, and for a quarterback who claims his interception percentage will be just 3.0% next year.
In exercise
a. Determine the least-squares regression line for estimating the passer rating based on the percentage of passes that were touchdowns.
e. For quarterbacks similar to the one in part (b), what is the 95% confidence interval for their mean rating next year?

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