A college professor teaching statistics conducts a study of 17 randomly selected students, comparing the number of homework exercises the students completed and their scores on the final exam, claiming that the more exercises a student completes, the higher their mark will be on the exam. The study yields a sample correlation coefficient of r = 0.625. Test the professor's claim at a 2.5% significance level.

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A college professor teaching statistics conducts a study of 17 randomly selected
students, comparing the number of homework exercises the students completed and
their scores on the final exam, claiming that the more exercises a student completes,
the higher their mark will be on the exam. The study yields a sample correlation
coefficient of r = 0.625. Test the professor's claim at a 2.5% significance level.
Transcribed Image Text:A college professor teaching statistics conducts a study of 17 randomly selected students, comparing the number of homework exercises the students completed and their scores on the final exam, claiming that the more exercises a student completes, the higher their mark will be on the exam. The study yields a sample correlation coefficient of r = 0.625. Test the professor's claim at a 2.5% significance level.
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