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_,tp.promelas-Mountain Coal Co.-5/2/00 <br />iFile: fh Transform: ARC SINE(SQUARE ROOT(Y)) <br />Shapiro - Wilk's test for normality <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 />'i---------------------------------------------^-------------------------- <br />- Data FAIL normality test. Try another transformation. <br />warning - TYie first three homogeneity tests are sensitive to non-normal <br />data and should not be performed. <br />p.promelas-Mountain Coal Co.-5/2/00 <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 />------------------------------------------------ <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 /> <br />,~ <br />i <br />~' p.promelas-Mountain Coal Co.-5/2/00 <br />r File: fh Transform: ARC SINE(SQUARE ROOT(Y)) <br />STEEL'S MANY-ONE RANK TEST - <br />--------------------------------------------------- <br />TRANSFORMED RANK <br />Ho:Control<Treatment <br />------------------------- <br />GRIT. <br /> GROUP IDENTIFICATION <br />----- -------------------- MEAN <br />- <br />- <br />- SUM VALUE df SIG <br /> <br />. <br />1 <br />Control --- <br />--- <br />-- <br />1.047 ------- ------ ----- --- <br />, <br />~ <br /> 2 1.9 1.098 20.00 10.00 4.00 <br />-~ 3 25 1.047 18.00 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 <br />- 100 1.047 18.00 10.00 4.00 <br /> --------- <br />Critical ------------------ <br />values use k = 5, -------------- <br />are 1 tailed, ----------- <br />and alpha --------- <br />= 0.05 -------------- <br />