Question: Refer to the NFL quarterback ratings data in Exercise 11-3. (a) Estimate the correlation coefficient between the ratings and the average yards per attempt. (b)

Refer to the NFL quarterback ratings data in Exercise 11-3.

(a) Estimate the correlation coefficient between the ratings and the average yards per attempt.

(b) Test the hypothesis versus using

. What is the P-value for this test?

(c) Construct a 95% confidence interval for .

(d) Test the hypothesis versus using . Find the P-value for this test.

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