发现KAPPA的一个问题

作了一个MINITAB的KAPPA分析，
用EXCEL 算了一遍检查员A的KAPPA（Within)=0.45,
但是MINITAB算出来却是0.432624。

谁知道为什么有差别吗？嘿嘿！{W

appraiser sample response
A 1 GOOD
A 2 GOOD
A 3 GOOD
A 4 BAD
A 5 GOOD
A 6 BAD
A 7 GOOD
A 8 GOOD
A 9 BAD
A 10 GOOD
A 11 BAD
A 12 GOOD
A 13 GOOD
A 14 GOOD
A 15 BAD
A 16 GOOD
A 17 BAD
A 18 GOOD
A 19 BAD
A 20 GOOD
A 21 BAD
A 22 BAD
A 23 BAD
A 24 BAD
A 25 GOOD
A 26 BAD
A 27 GOOD
A 28 BAD
A 29 BAD
A 30 GOOD
A 31 GOOD
A 32 BAD
A 33 BAD
A 34 BAD
A 35 BAD
A 36 GOOD
A 37 GOOD
A 38 BAD
A 39 GOOD
A 40 BAD
A 1 GOOD
A 2 GOOD
A 3 GOOD
A 4 GOOD
A 5 GOOD
A 6 BAD
A 7 GOOD
A 8 BAD
A 9 BAD
A 10 GOOD
A 11 GOOD
A 12 GOOD
A 13 GOOD
A 14 GOOD
A 15 GOOD
A 16 GOOD
A 17 BAD
A 18 GOOD
A 19 GOOD
A 20 BAD
A 21 GOOD
A 22 BAD
A 23 BAD
A 24 BAD
A 25 GOOD
A 26 GOOD
A 27 GOOD
A 28 BAD
A 29 BAD
A 30 GOOD
A 31 GOOD
A 32 BAD
A 33 GOOD
A 34 GOOD
A 35 BAD
A 36 GOOD
A 37 GOOD
A 38 GOOD
A 39 GOOD
A 40 BAD
B 1 GOOD
B 2 BAD
B 3 GOOD
B 4 GOOD
B 5 GOOD
B 6 GOOD
B 7 GOOD
B 8 BAD
B 9 BAD
B 10 BAD
B 11 BAD
B 12 BAD
B 13 BAD
B 14 GOOD
B 15 GOOD
B 16 GOOD
B 17 BAD
B 18 GOOD
B 19 GOOD
B 20 GOOD
B 21 GOOD
B 22 BAD
B 23 GOOD
B 24 BAD
B 25 GOOD
B 26 GOOD
B 27 GOOD
B 28 BAD
B 29 BAD
B 30 BAD
B 31 GOOD
B 32 BAD
B 33 GOOD
B 34 GOOD
B 35 GOOD
B 36 GOOD
B 37 GOOD
B 38 GOOD
B 39 GOOD
B 40 GOOD
B 1 GOOD
B 2 GOOD
B 3 GOOD
B 4 GOOD
B 5 GOOD
B 6 GOOD
B 7 GOOD
B 8 GOOD
B 9 BAD
B 10 GOOD
B 11 BAD
B 12 GOOD
B 13 GOOD
B 14 BAD
B 15 GOOD
B 16 GOOD
B 17 GOOD
B 18 GOOD
B 19 GOOD
B 20 GOOD
B 21 GOOD
B 22 BAD
B 23 BAD
B 24 GOOD
B 25 GOOD
B 26 GOOD
B 27 GOOD
B 28 BAD
B 29 BAD
B 30 GOOD
B 31 GOOD
B 32 BAD
B 33 GOOD
B 34 GOOD
B 35 BAD
B 36 GOOD
B 37 GOOD
B 38 BAD
B 39 GOOD
B 40 GOOD