Wilcoxon T Critical Values Table. To use this table. To determine the appropriate critical value from Table 7 we need sample size n15 and our two-sided level of significance α005.
Reject H 0 if W. Level of significance Level of significance Two-sided One-sided 020 010 010 005 005 0025 001 0005 Two-sided One-sided 020 010 010 005 005 0025 001 0005. Statistical Table 81 Critical one- and two-tailed values of T for a Wilcoxon Matched-Pairs Signed-Ranks test.
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.
Two-tailed at 20Critical one- and two-tailed values of U for a MannWhitney Independent Groups test. Level of significance Level of significance Two-sided One-sided 020 010 010 005 005 0025 001 0005 Two-sided One-sided 020 010 010 005 005 0025 001 0005. The critical value for this two-sided test with n15 and α005 is 25 and the decision rule is as follows. Therefore the null hypothesis can be accepted and the experimental hypothesis is refuted.
