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Sheet19.8 ;10.2 ;10.4 9.8 ;10.0 ;10.2 ;9.6

9.810.2df = n 110.49.8Tentukan 95% selang kepercayaan rataan 10=5%n=7t0,025(6)2.446910.210 -0.26158461319.69.7384153869