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Obtain the values of E₀(r_s) and var₀(r_s) corresponding to the exact conditional null distribution of r_sfor the case of n = 5 and the tied data considered in Comment 46. Compare these values with the corresponding values for E₀(r_s) and var₀(r_s) given in expressions (8.71) and (8.72) for the no ties setting. Discuss a possible reason for the difference in these null variances.

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Statistics and Probability, Statistics

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