TABLE 1.
Comparison of standard errors among the true, ZIBC and conventional methods ()
Average | Average | Average | APRD | APRD | ||||||
---|---|---|---|---|---|---|---|---|---|---|
|
Zero rate |
|
|
|
ZIBC vs. true | CV vs. true | ||||
|
0.2 | 0.029 | 0.029 | 0.028 | 0.003 | 0.047 | ||||
0.3 | 0.032 | 0.031 | 0.032 | 0.021 | 0.005 | |||||
0.4 | 0.035 | 0.034 | 0.038 | 0.016 | 0.090 | |||||
0.5 | 0.039 | 0.038 | 0.046 | 0.011 | 0.196 | |||||
0.6 | 0.044 | 0.044 | 0.057 | 0.007 | 0.283 | |||||
0.7 | 0.053 | 0.053 | 0.071 | 0.001 | 0.341 | |||||
0.8 | 0.068 | 0.093 | 0.091 | 0.363 | 0.332 | |||||
|
0.2 | 0.029 | 0.030 | 0.028 | 0.007 | 0.052 | ||||
0.3 | 0.033 | 0.032 | 0.032 | 0.025 | 0.024 | |||||
0.4 | 0.036 | 0.035 | 0.038 | 0.019 | 0.061 | |||||
0.5 | 0.040 | 0.039 | 0.046 | 0.014 | 0.164 | |||||
0.6 | 0.045 | 0.045 | 0.057 | 0.012 | 0.254 | |||||
0.7 | 0.054 | 0.056 | 0.071 | 0.031 | 0.312 | |||||
0.8 | 0.070 | 0.081 | 0.090 | 0.163 | 0.300 | |||||
|
0.2 | 0.030 | 0.031 | 0.028 | 0.022 | 0.052 | ||||
0.3 | 0.034 | 0.033 | 0.032 | 0.029 | 0.045 | |||||
0.4 | 0.037 | 0.036 | 0.038 | 0.024 | 0.033 | |||||
0.5 | 0.041 | 0.040 | 0.046 | 0.020 | 0.130 | |||||
0.6 | 0.046 | 0.046 | 0.057 | 0.015 | 0.220 | |||||
0.7 | 0.056 | 0.057 | 0.070 | 0.022 | 0.267 | |||||
0.8 | 0.071 | 0.082 | 0.090 | 0.154 | 0.268 |
Abbreviation: APRD, absolute percent relative difference.