1. A gym owner wants to test the relationship between time spent on a treadmill and weight loss at his gym. He performs a linear correlation which results in a Pearson r of 0.8 and a p-value of 0.001. State (ii) his null hypothesis and why you came to your conclusion.

2. A gym owner wants to test the relationship between time spent on a treadmill and weight loss at his gym. He performs a linear correlation which results in a Pearson r of 0.8 and a p-value of 0.001. State (iii) whether he should accept or reject the null hypothesis and why you came to your conclusion.

3. A school counselor wants to look at the weekly use of marijuana and its impact on students' GPA. She performs a linear correlation which results in a Pearson r of -0.7 and a p-value of 0.06. State (i) her hypothesis and how you arrived your conclusion.