8.2.5 Specific Rank Tests Using Approximate Scores

First, note that the scores aNi,f,a1N(i,f),si498_e can only be obtained from tables (if available) due to their complicated expressions. For example, there are tables for EΦ1(UN:i)si499_e. However, since EUN:i=i/(N+1)si500_e and VarUN:i=i(Ni+1)/(N+1)2(N+2)0si501_e as N, the distribution of UN:i is concentrated near i

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