Question: With reference to the data of Exercise 11.1 on page 418, 1. calculate the rank correlation coefficient; 2. test the null hypothesis, at the 0.05

With reference to the data of Exercise 11.1 on page 418, 1. calculate the rank correlation coefficient;

2. test the null hypothesis, at the 0.05 level of significance, that ρ

= 0 against the alternative that ρ ≠ 0. Compare your results with those obtained in Exercise 11.44 on page 455.

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