Question

For each of the 32 National Football League teams, the numbers of points scored and allowed during the 2012 season are shown below.


Assuming these are sample data, answer the following questions. You may use statistical software to assist you.
a. What is the correlation coefficient between these variables? Are you surprised the association is negative? Interpret your results.
b. Find the coefficient of determination. What does it say about the relationship?
c. At the .05 significance level, can you conclude there is a negative association between “points scored” and “points allowed”?
d. At the .05 significance level, can you conclude there is a negative association between “points scored” and “points allowed” for eachconference?


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  • CreatedDecember 10, 2014
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