Use the Following Sample Data to Answer the Next

Use the following sample data to answer the next questions. The paired data
consist of a random sample of the cost of regionally advertising (in thousands of
dollars) a certain pharmaceutical drug and the number of new prescriptions
written (in thousands). Use the Spearman's rank correlation coefficient to test for
a correlation between the cost of advertising and the number of new prescriptions
written. Use a significance level of .
-Identify the critical value .