Business Statistics

778    Appendices

Table A.12:

Critical Values of T for the Wilcoxon Matched-Pairs Signed Rank Test

1-SIDED 2-SIDED

n = 5 n = 6 n = 7 n = 8 n = 9 n = 10

α = 0.05 α = 0.10 1 2 4 6 8 11

α = 0.025 α = 0.05 1 2 4 6 8

α = 0.01 α = 0.02 0 2 3 5

α = 0.005 α = 0.01 0 2 3

1-SIDED 2-SIDED

n = 11 n = 12 n = 13 n = 14 n = 15 n = 16

α = 0.05 α = 0.10 14 17 21 26 30 36

α = 0.025 α = 0.05 11 14 17 21 25 30

α = 0.01 α = 0.02 7 10 13 16 20 24

α =.0005 α = 0.01 5 7 10 13 16 19

1-SIDED 2-SIDED

n = 17 n = 18 n = 19 n = 20 n = 21 n = 22

α = 0.05 α = 0.10 41 47 54 60 68 75

α = 0.025 α = 0.05 35 40 46 52 59 66

α = 0.01 α = 0.02 28 33 38 43 49 56

α = 0.005 α = 0.01 23 28 32 37 43 49

1-SIDED ...