When the sample size n is greater than 30, the Spearman rank correlation coefficient $$r _ { s }$$ is approximately normally distributed with:
A) mean 0 and standard deviation 1.
B) mean 1 and standard deviation $$\sqrt { n - 1 }$$ .
C) mean 1 and standard deviation 1/ $$\sqrt { n - 1 }$$ .
D) mean 0 and standard deviation 1/ $$\sqrt { n - 1 }$$ .

Question

Quizplus · Accepted Answer

When the sample size n is greater than 30, the distribution of the Spearman rank correlation coefficient $$r_{s}$$ approaches a normal distribution with mean 0 and standard deviation 1/ $$\sqrt{n-1}$$. Therefore, the best choice is D.

When the Sample Size N Is Greater Than 30, the Spearman