Question: 16.33 With reference to the data of Exercise 11.1 on page 418, (a) calculate the rank correlation coefficient; (b) test the null hypothesis, at the

16.33 With reference to the data of Exercise 11.1 on page 418,

(a) calculate the rank correlation coefficient;

(b) 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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