Refer to Data Set 21 in Appendix B and use the paired data for the price and

Question:

Refer to Data Set 21 in Appendix B and use the paired data for the price and weight (carats) of diamonds. Is there a correlation, suggesting that heavier diamonds are generally of greater value?
Use the rank correlation coefficient to test the claim of no correlation between the two variables. Use a significance level of α = 0.05.