Use the Rank Correlation Coefficient to Test for a Correlation $\mathrm { r } _ { \mathrm { S } },$

Essay

Use the rank correlation coefficient to test for a correlation between the two variables.
-Given that the rank correlation coefficient, r $\mathrm { r } _ { \mathrm { S } },$ for 20 pairs of data is 0.827, test the claim of correlation between the two variables. Use a significance level of 0.05.