Question

Testing to see if there is evidence that the correlation between two variables is negative.

A) Chi-square test
B) T-test
C) ANOVA
D) Pearson correlation coefficient

Answer 1

The Pearson correlation coefficient is the correct test to determine evidence of a negative correlation between two variables.

Step-by-step explanation:

The correct test to determine if there is evidence of a negative correlation between two variables is the Pearson correlation coefficient.

1. Calculate the Pearson correlation coefficient between the two variables.
2. Check the sign of the correlation coefficient. If it is negative, there is evidence of a negative correlation.

For example, if the correlation coefficient is -0.5, it indicates a strong negative correlation between the variables.