... counts NTC 15 8 13 7.00 NKTC 14 66 14 87.00 Total 16 24 11 6 13 7.00 15 08 14 87.00 16 24 Total 274 2974 32 48 Chi-Sq = 3. 219 + 0.297 + 3. 219 + 0.297 = 7.0 31 DF = 1, P-Value = 0.008 So sánh t l heo còi lô ... 58 58 58 35 10 37 24 12 29 60 ,34 13 ,8 17 ,24 8,62 T l % 63, 8 41, 38 8,62 20,7 12 ,07 KQXL th ng kê 50 P> 0,05 % 70 60 ,34 60 50 41, 38 Lô I 40 30 20 13 ,80 10 Lô II 20,70 17 ,24 8,62 8,62 12 ,07 Bi u ... observed counts COI KHONGCOI 23 35 16 .50 41. 50 Total 58 10 16 .50 48 41. 50 58 Total 33 83 11 6 Chi-Sq = 2.5 61 + 1. 018 + 2.5 61 + 1. 018 = 7 .15 7 DF = 1, P-Value = 0.007 38 So sánh m c tăng tr ng trung...