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The Data of Controlled Class

555 25 1500 91470 S= 7.67 S 2 = 58.8 rata2x= 60 Lmax= 0.0908 Ltable= 0.173 ∑ [ ∑ ] [ ] √ The Liliefors shows that the significant degree of 0.05 in L0.0525 = 0.173 H 1 : L 0.173 H : L ≤ 0.173 In the table 4.3, the L max value is 0.0908. Therefore, H is accepted because the result shows that L max is lower than L table 0.1406 0.173. It means that the data in experiment class pre-test is normally distributed. Table 4.4 Calculation of Post-test Normality in Experiment Class No. X f fX fX 2 p=fn ∑P z = Xi- Xs ф T=ф-∑p 1 52 1 52 2704 0.04 0.04 -2.26506 0.0119 0.0281 2 60 2 120 7200 0.08 0.12 -1.38883 0.0838 0.0362 3 64 1 64 4096 0.04 0.16 -0.95071 0.1711 0.0111 4 65 1 65 4225 0.04 0.2 -0.84118 0.2005 0.0005 5 68 6 408 27744 0.24 0.44 -0.5126 0.305 0.135 6 72 4 288 20736 0.16 0.6 -0.07448 0.4721 0.1279 7 76 3 228 17328 0.12 0.72 0.363636 0.6406 0.0794 8 80 1 80 6400 0.04 0.76 0.801752 0.7881 0.0281 9 84 4 336 28224 0.16 0.92 1.239869 0.8907 0.0293 10 88 2 176 15488 0.08 1 1.677985 0.9525 0.0475 Total ∑X= ∑ F= ∑ fX= ∑f X 2 = 709 25 1817 134145 S= 9.13 S 2 = 83.42 rata2x= 72.68 Lmax= 0.135 Ltable= 0.173 ∑ [ ∑ ] [ ] √ The Liliefors shows that the significant degree of 0.05 in L0.0525 = 0.173 H1 : L 0.173 H0 : L ≤ 0.173 In the table 4.4, the L max value is 0.135. Therefore, H is accepted because the result shows that L max is lower than L table 0.135 0.173. It means that the data in experiment class post-test is normally distributed. b. The Normality Test of Control Class Table 4.5 Calculation of Pre-test Normality in Control Class No. X f fX fX 2 p=fn ∑P z = Xi- Xs ф T=ф-∑p 1 43 1 43 1849 0.04 0.04 -2.22548 0.0102 0.0298 2 48 1 48 2304 0.04 0.08 -1.49341 0.0681 0.0119 3 50 2 100 5000 0.08 0.16 -1.20059 0.1151 0.0449 4 51 1 51 2601 0.04 0.2 -1.05417 0.1469 0.0531 5 52 3 156 8112 0.12 0.32 -0.90776 0.1841 0.1359 6 57 1 57 3249 0.04 0.36 -0.1757 0.4325 0.0725 7 59 2 118 6962 0.08 0.44 0.11713 0.5438 0.1038 8 60 7 420 25200 0.28 0.72 0.263543 0.6026 0.1174 9 62 1 62 3844 0.04 0.76 0.556369 0.7088 0.0512 10 64 2 128 8192 0.08 0.84 0.849195 0.7995 0.0405 11 65 2 130 8450 0.08 0.92 0.995608 0.8389 0.0811 12 70 1 70 4900 0.04 0.96 1.727672 0.9573 0.0027 13 72 1 72 5184 0.04 1 2.020498 0.9783 0.0217 Total ∑X= ∑ F= ∑ fX= ∑f X 2 = 753 25 1455 85847 S= 6.83 S 2 = 46.6 rata2x= 58.2 Lmax= 0.1359

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