A psychologist investigated the relationship between the number of hours of physical exercise per week and self-reported wellness scores. She obtained a sample of 18 participants ($N=18$) and calculated Spearman's rank correlation coefficient ($r_s$). Her calculated value was $r_s=0.612$.

She concluded that there was a significant positive correlation and rejected her null hypothesis.

Table 1: Critical values for Spearman’s Rho ($r_s$)

Note: To achieve significance, the calculated value of $r_s$ must be equal to or greater than the critical value in the table.