Wilcoxon T Critical Values Table. Figure1 critical values for the Wilcoxon single sample and paired sample tests Given that W is small the key question becomes Is W significantly smaller than would happen by chance The table helps you decide this by supplying the critical value. Here we use α 05 and n 14 ie.
01 gives a critical value for T of 151 which fits very closely with what is obtained from a normal approximation even the one linked to on this site. Two-tailed at 20Critical one- and two-tailed values of U for a MannWhitney Independent Groups test. Reject H 0 if W.
Critical Values for the WilcoxonMann-Whitney Test U Nondirectional α05 Directional α025 n 2 n 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18.
To determine the appropriate critical value from Table 7 we need sample size n15 and our two-sided level of significance α005. Two-tailed at 20Critical one- and two-tailed values of U for a MannWhitney Independent Groups test. If the sample sizes are equal either sample can be designated m. The critical values for the T statistic are given in the Wilcoxon Signed-Ranks Table.
