A music instructor wants assess the relationship between hours spent in practice

Question

A music instructor wants assess the relationship between hours spent in practice and the score in a national technical exam. She selects a 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. Which of the following statements are accurate?

a.A strong positive relationship exists between practice time and test scores.

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

c.There is marginal evidence that a relationship between practice time and test scores is likely in the population.

d.There is a moderate negative relationship between practice time and test scores.

Explanation / Answer

Here we ahve r = 0.42

The correct option is :

c.There is marginal evidence that a relationship between practice time and test scores is likely in the population.

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