What statistic should be used to find out whether there is a relationship between hours spent participating in sports and GPA?
A)The Pearson correlation coefficient
B)The Spearman rank-order correlation coefficient
C)The point-biserial correlation coefficient
D)The nonlinear correlation coefficient

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient is the appropriate statistic to use when examining the linear relationship between two continuous variables, such as hours spent participating in sports and GPA. This statistic measures the strength and direction of the relationship between the two variables, with values ranging from -1 to +1. A positive correlation coefficient indicates that as hours spent participating in sports increase, GPA also increases, while a negative correlation coefficient indicates that as hours spent participating in sports increase, GPA decreases.

What Statistic Should Be Used to Find Out Whether There