There is strong evidence that the relationship is likely in the population.

Statistics
Tutor: None Selected Time limit: 1 Day

random sample of 300 students and correlates their practice hours per week with their test scores.  The relationship appears linear, the correlation is 0.42 and the p-value=.001.  Is the titile the right answer?

Oct 5th, 2015

Thank you for the opportunity to help you with your question!

First note that the sample size is very big - 300

Next, a correlation of 0.42 is high, suggesting a causal relationship.

This is confirmed by the p- value 0.001 or only 1 in a thousand chance that the relationship is by chance factors and not real.

The title is therefore correct.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 5th, 2015

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Oct 5th, 2015
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Oct 5th, 2015
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