b b c,d,e

Setelah2 Blanko 3 3.50 Formula 4 3 4.83 Formula 6 3 9.33 Formula 8 3 8.33 Total 12 Sebelum3 Blanko 3 3.50 Formula 4 3 4.83 Formula 6 3 9.33 Formula 8 3 8.33 Total 12 Setelah3 Blanko 3 2.50 Formula 4 3 6.50 Formula 6 3 8.50 Formula 8 3 8.50 Total 12 Sebelum4 Blanko 3 3.50 Formula 4 3 4.83 Formula 6 3 9.33 Formula 8 3 8.33 Total 12 Setelah4 Blanko 3 3.33 Formula 4 3 5.67 Formula 6 3 8.33 Formula 8 3 8.67 Total 12 Test Statistics

a,b

Sebelum1 Setelah1 Sebelum2 Setelah2 Sebelum3 Setelah3 Chi-square 2.476 5.256 5.982 5.642 5.642 5.845 Df 3 3 3 3 3 3 Asymp. Sig. .480 .154 .113 .130 .130 .119 a. Kruskal Wallis Test b. Grouping Variable: Formula Lampiran 8. lanjutan Universitas Sumatera Utara Test Statistics

a,b

Sebelum4 Setelah4 Chi-square 5.642 4.490 Df 3 3 Asymp. Sig. .130 .213 a. Kruskal Wallis Test b. Grouping Variable: Formula Friedman Test Test Statistics a N 12 Chi-square 46.560 Df 7 Asymp. Sig. .000 a. Friedman Test Wilcoxon Signed Ranks Test Test Statistics b Setelah1 - Sebelum1 Setelah2 - Sebelum2 Setelah3 - Sebelum3 Setelah4 - Sebelum4 Setelah4 - Sebelum1 Z -3.051 a -1.027 a -.816 a -2.646 a -2.949 a Asymp. Sig. 2- tailed .002 .305 .414 .008 .003 a. Based on negative ranks. b. Wilcoxon Signed Ranks Test  Kehalusan kulit evenness Tests of Normality

b,c,d,e

Formula Kolmogorov-Smirnov a Shapiro-Wilk Statistic df Sig. Statistic Df Sig. Sebelum1 Blanko .385 3 . .750 3 .000 Formula 4 .385 3 . .750 3 .000 Formula 6 .219 3 . .987 3 .780 Setelah1 Blanko .385 3 . .750 3 .000 Formula 6 .385 3 . .750 3 .000 Formula 8 .385 3 . .750 3 .000 Lampiran 8. lanjutan Universitas Sumatera Utara Sebelum2 Blanko .385 3 . .750 3 .000 Formula 6 .385 3 . .750 3 .000 Formula 8 .385 3 . .750 3 .000 Setelah2 Blanko .175 3 . 1.000 3 1.000 Formula 4 .385 3 . .750 3 .000 Formula 6 .385 3 . .750 3 .000 Formula 8 .175 3 . 1.000 3 1.000 Sebelum3 Blanko .253 3 . .964 3 .637 Formula 4 .385 3 . .750 3 .000 Formula 6 .383 3 . .756 3 .012 Formula 8 .175 3 . 1.000 3 1.000 Setelah3 Blanko .253 3 . .964 3 .637 Formula 4 .385 3 . .750 3 .000 Formula 6 .385 3 . .750 3 .000 Formula 8 .385 3 . .750 3 .000 Lampiran 8. lanjutan Universitas Sumatera Utara Sebelum4 Blanko .385 3 . .750 3 .000 Formula 4 .292 3 . .923 3 .463 Formula 6 .292 3 . .923 3 .463 Formula 8 .253 3 . .964 3 .637 Setelah4 Formula 4 .292 3 . .923 3 .463 Formula 6 .385 3 . .750 3 .000 Formula 8 .314 3 . .893 3 .363 a. Lilliefors Significance Correction b. Sebelum1 is constant when Formula = Formula 8. It has been omitted. c. Setelah1 is constant when Formula = Formula 4. It has been omitted. d. Sebelum2 is constant when Formula = Formula 4. It has been omitted. e. Setelah4 is constant when Formula = Blanko. It has been omitted. Kruskal Wallis Test Ranks Formula N Mean Rank Sebelum1 Blanko 3 5.33 Formula 4 3 4.17 Formula 6 3 5.50 Formula 8 3 11.00 Total 12 Setelah1 Blanko 3 6.00 Formula 4 3 5.00 Formula 6 3 4.17 Formula 8 3 10.83 Total 12 Lampiran 8. lanjutan Universitas Sumatera Utara Setelah2 Blanko 3 6.67 Formula 4 3 5.50 Formula 6 3 4.33 Formula 8 3 9.50 Total 12 Sebelum3