Question: With reference to the data of Exercise 11.1, (a) Calculate the rank correlation coefficient; (b) Test the null hypothesis at the 0.05 level of significance

With reference to the data of Exercise 11.1,
(a) Calculate the rank correlation coefficient;
(b) Test the null hypothesis at the 0.05 level of significance that p = 0 against the alternative that p ≠ 0. Compare your results with those obtained in Exercise 11.53.

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