1. 
What does an r value of zero mean? 
Solution 

2. 
When n = 2 and r = 1, are the data significant? Explain. 
Solution 
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3. 
When n = 100 and r = –0.89, is there a significant correlation? Explain. 
Solution 

4. 
When testing the significance of the correlation coefficient, what is the null hypothesis? 
Solution 

5. 
When testing the significance of the correlation coefficient, what is the alternative hypothesis? 
Solution 
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