摘要
文中探讨了模拟偏差对自助法均值估计的影响.首先,从分布N(1,12)中产生样本数据,利用自助法,得到自助法均值的估计.然后讨论了样本数据均值和总体分布均值的偏差对自助法估计的影响.结果表明,当偏差的绝对值小于等于0.54时,模拟结果较好,当偏差的绝对值大于等于0.56时,模拟结果很差.
The paper discusses the influence of simulation bias for bootstrap mean estimation.Firstly,sample data is generated from N（1,12）,and bootstrap mean estimator is obtained by using bootstrap method.Then,the influence of bias of sample data mean and population distribution mean for bootstrap estimation is discussed.The results shows that the simulated result is very good when the absolute value of bias is less than or equal 0.54,but the simulated result is very bad when the absolute value of bias is greater than or equal 0.56.
出处
《通化师范学院学报》
2012年第8期12-13,共2页
Journal of Tonghua Normal University
关键词
自助法
偏差
影响
Bootstrap
bias
influence
