Consider the follow ing sample data:

x -2 0 3 - 1 4 7 y - 4 - 3 - 8 - 5 - 9 -1 0

a. Calculate and interpret rs.

b. Specify the competing hypotheses in order to determine whether the Spearman population correlation coefficient is less than zero.

c. At the 1% significance level, w hat is the decision rule?

d. What is the conclusion?