表 7.2.2
Pi |
npi |
L(pi)Ⅰ |
p1(r=2)p2(r ≤ 2)+p1(r=3)p2(r ≤ 1)=L(pi)Ⅱ |
L(pi) |
---|---|---|---|---|
0.005 |
(150)(0.005)=0.75 (200)(0.005)=1.00 |
0.827 |
(0.133)(0.920)+(0.034)(0.736)=0.147 |
0.974 |
0.01 |
(150)(0.01)=1.5 (200)(0.01)=2.0 |
0.558 |
(0.251)(0.677)+(0.126)(0.406)=0.221 |
0.779 |
0.15 |
(150)(0.015)=2.25 (200)(0.015)=3.0 |
0.343 |
(0.267)(0.423)+(0.2)(0.199)=0.153 |
0.496 |
0.02 |
(150)(0.02)=3.0 (200)(0.02=4.0) |
0.199 |
(0.224)(0.238)+(0.224)(0.091)=0.074 |
0.273 |
0.25 |
(150)(0.025=3.75 (200)(0.025)=5.0 |
0.112 |
(0.165)(0.125)+(0.207)(0.041)=0.029 |
0.141 |
0.03 |
(150)(0.03)=4.5 (200)(0.03)=6.0 |
0.061 |
(0.113)(0.062)+(0.169)(0.01)=0.01 |
0.071 |
0.04 |
(150)(0.04)=6.0 (200)(0.04)=8.0 |
0.017 |
(0.045)(0.014)+(0.089)(0.003)=0.018 |
0.018 |
由表 7.2.2 的第一列 pi 和相对应的第三列 L(pi)Ⅰ的接收概率值可绘出该双次抽样方案第一次抽样的 OC 曲线;由第一列 pi 和第五列 L(pi)的接收概率值可绘出该双次抽样方案的 OC 曲线,如图 7.2.2 所示。