Table 5: Simulated type I error rates (%) and power (%) for MWCMLE and AMWCMLE with different variance ratios when the numbers of product lots are unequal if f = 1.5 and μ T μ R = σ R 8 (for power only).

s
nT nR σ T 2 σ R 2 Simulated type I error rate Simulated power
MWCMLE AMWCMLE MWCMLE AMWCMLE
10 6 0.25 4.7258 4.6639 79.4977 79.1071
0.5 4.7881 4.673 73.0883 72.2606
1.0 4.8313 4.6331 61.1323 59.5617
2.0 4.7841 4.4482 42.3201 39.9395
4.0 4.0661 3.6017 20.9865 18.7454
10 25 0.25 4.9179 3.2928 99.7686 99.6524
0.5 5.0159* 3.5998 98.6813 98.2647
1.0 5.1207* 3.9524 92.6733 91.5193
2.0 5.1431* 4.3185 71.6018 69.714
4.0 4.7668 4.2371 35.2019 33.5624
10 100 0.25 5.1223* 0.5951 100 99.9973
0.5 5.1581* 1.1428 99.9569 99.7783
1.0 5.1273* 1.9812 97.9137 95.9279
2.0 5.0872* 2.9319 80.8566 75.9145
4.0 4.8087 3.4929 40.469 36.2409
6 10 0.25 4.9327 4.5894 90.2938 89.9811
0.5 5.0818* 4.7678 80.7979 80.3026
1.0 5.2181* 4.9573 61.2033 60.6936
2.0 5.0389* 4.8305 34.1712 33.7187
4.0 14.7119 3.5091 12.7372 12.6295
25 10 0.25 4.6766 4.4341 95.8673 95.4431
0.5 4.7027 4.2605 94.3548 93.303
1.0 4.7439 3.9579 90.8036 88.0992
2.0 4.7785 3.5078 82.4727 75.519
4.0 4.8036 64.7772 64.7772 50.2691
100 10 0.25 4.5566 4.0399 96.8569 96.0507
0.5 4.5989 3.6254 96.5291 94.7502
1.0 4.626 2.9201 95.8535 91.5534
2.0 4.6427 1.9884 94.3382 83.3233
4.0 4.6508 1.0428 90.8661 62.7931

*: Simulated type I error rate is inflated.