Correlation coefficient test, Applied Statistics

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1. If you are calculating a correlation coefficient testing the relationship between height and weight, state the null and alternative hypotheses.

2. What kind of relationship does a correlation coefficient test?

3. What does a "perfect negative correlation" mean?

4. What number will your correlation coefficient be close to when there is no particular pattern of relationship between your x variable and your y variable?

5. Interpret the correlation coefficient in the scatter plots below?

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