see below the complete data set

Country	GNP	Infant_Mortality
Luxembourg	1	7
Norway	2	4
Singapore	3	1
United States	4	10
Ireland	5	9
Switzerland	6	5
Netherlands	7	8
Austria	8	6
Sweden	9	2
Iceland	10	3

 

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42. FILE WB_Ranking. The accompanying data file shows the ranking of the richest countries, as measured by per capita GNP. In addition, it gives each country's rank with respect to infant mortality. A higher rank indicates a lower mortality rate. a. Specify the competing hypotheses to determine whether the Spearman rank correlation coefficient is different from zero. b. Calculate and interpret the Spearman rank correlation coefficient rs. c. At the 5% significance level, are GNP and the infant mortality rate correlated? Assume the normal distribution approximation. 42. FILE WB_Ranking. The accompanying data file shows the ranking of the richest countries, as measured by per capita GNP. In addition, it gives each country's rank with respect to infant mortality. A higher rank indicates a lower mortality rate. a. Specify the competing hypotheses to determine whether the Spearman rank correlation coefficient is different from zero. b. Calculate and interpret the Spearman rank correlation coefficient rs. c. At the 5% significance level, are GNP and the infant mortality rate correlated? Assume the normal distribution approximation.