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## Application of a Two-tailed Pearson’s Correlation

You are a researcher interested in identifying if there are any correlations between intelligence and driving errors. Using the dataset “assignment 3 correlation," run a two-tailed Pearson's Correlation for the variables labeled "FSIQ" and "number of driving errors (DRIVERR)."
1. State the null hypothesis for this test:
2. What is the correlation coefficient for FSIQ and the number of driving errors?
3. What can you conclude from this data? Is there a significant correlation between driving errors and FSIQ?

## Hypothesis Testing

Now, let's say you would like to test your hypothesis that there is a positive correlation between FSIQ and driving errors. Using the same dataset, run a one-tailed Pearson's correlation for the variables labeled “FSIQ” and “number of driving errors (DRIVERR).”
4. State the null hypothesis for this test:
5. What is the correlation coefficient for FSIQ and number of driving errors?
6. What can you conclude from this data? Is there a significant positive correlation between driving errors and FSIQ?

You are a researcher interested in identifying if there are any correlations between intelligence and driving errors. Using the dataset “assignment 3 correlation,” run a two tailed Pearson’s Correlation for the variables labeled “FSIQ” and “number of driving errors (DRIVERR).”  State the null hypothesis for this test: Ans: Ho: ρ=0  What is the correlation coefficient for FSIQ and number of driving errors? Ans: -0.109  What can you conclude from this data? Is there a significant correlation between driving errors and FSIQ? Ans: The p-value is 0.395, which is not significant. Thus, we can conclude that the correlation is not significant. Now, let’s say you would like to test your hypothesis that there is a positive correlation between FSIQ and driving errors. Using the same dataset, run a one tailed Pearson’s correlation for the variables labeled “FSIQ” and “number of driving errors (DRIVERR).”  State the null hypothesis for this test: Ans: Ho: ρ=0  What is the correlation coefficient for FSIQ and number of driving errors? Ans: -0.109.  What can you conclude from this data? Is there a significant positive correlation between driving errors and FSIQ? Ans: The p-value is 0.803, which is not significant. Thus, we can conclude that there is no evidence to support the claim that correlation is positive.