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<br />p.promelas-Mountain Coal Co.-10/17/00 <br />File: fh Transform: ARC SINE(SQUARE ROOT(Y)) <br />Shapiro - Wilk's test for normality <br />--------------------------------------- <br />D = 0.031 <br />W = 0.465 <br />Critical W (P = 0.05) (n = 24) = 0.916 <br />Critical W (P = 0.01) (n = 24) = 0.884 <br />Data FAIL normality test. Try another transformation. <br />Warning - The first three homogeneity tests are sensitive to non-normal <br />data and should not be performed. <br />p.promelas-Mountain Coal Co.-10/17/00 <br />File: fh Transform: ARC SINE(SQUARE ROOT(Y)) <br />Hartley's test for homogeneity of variance <br />Bartlett's test for homogeneity of variance <br />These two tests can not be performed because at least one group has <br />zero variance. <br />Data FAIL to meet homogeneity of variance assumption. <br />Additional transformations are useless. <br />p.promelas-Mountain Coal Co.-10/17/00 <br />File: fh Transform: ARC SINE(SQUARE ROOT(Y)) <br />STEEL'S MANY-ONE RANK TEST - <br />GROUP IDENTIFICATION <br />TRANSFORMED RANK <br />MEAN SUM <br />Ho:Control<Treatment <br />---------------------- <br />GRIT. <br />VALUE df SIG <br />------ ----- --- <br />1 Control 1.047 <br />2 1.9 1.047 18.00 10.00 4.00 <br />3 25 1.098 20.00 10.00 4.00 <br />4 50 1.047 18.00 10.00 4.00 <br />5 75 1.047 18.00 10.00 4.00 <br />6 100 1.047 18.00 10.00 4.00 <br />Critical values use k = 5, are 1 tailed, and alpha = 0.05 <br />