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5、 0 i-, j- ;t , i- j- , . . , 9:nnnijc215., ( n11):t=95 100200c215= 47,5,. . 2=(,),(,),(,),(60 47547535 47547540 52552565 5222c45c43c45c43c45c43c45 255252,),= 12,53. 2 , 7, , 1. , , - ( 12,53 3,84 ( 5 %), , . 3). 2 , , , 3. 3 60 5040 50 2 2,02, 3,84.4 ISO 858820111 2() -, (YATES):2=(| | ),EEEttij0250
6、c45c45c229, |0 Et| . 0,5 ; , 5; , 40.2 2 c180 2 :X2=| | ( / ) ()()nn nn n nnnnn11 22 12 21211 12 21 222c215c45c215c45 c215c43c43()()| | ( / ) .nnnnnn nn n n11 21 22 1211 22 12 2122c43c43c61c215c45c215c45 c215.nnnn1212c215c215c2153 : - . : - , , , 5 % 2,71.2 2 1, 4 6 (. 4). 4 2 50 55 105 30 65 95 80
7、120 2002= 5,34 5 %.3 3 1 , 32 : 13 19 , , - 1 (. 5). 5 3 ( ) 8 6 14 5 13 18 13 19 322= 1,73 5 %- . 5. - , 2 ( 2,81) 5 %.4 4 1, - ( )1 ( )2. , , 6.5 ISO 85882011 6 4 + ( )1 ( )2 60 45 40 85 145 40 55 40 95 135 100 100 80 180 280 , :) ( )1+ ( )2; - 12 ( )1 ( )2, ;b) , ( )1 ( )2 : 1, , - , ( 6), (df ) ( 31=2) (S):2, 4,65, 5,99 5 %- - ( );) ( )1 ( )2 : - , 1 ( ), , -, , ; , , ,
