Effect of nonnormality on tests for a mean vector with missing data under an elliptically contoured pattern-mixture model
Effect of nonnormality on tests for a mean vector with missing data under an elliptically contoured pattern-mixture model
复制标题
非正态性对椭圆轮廓模式混合模型下缺失数据的均值向量检验的影响
DOI:
10.1080/03610926.2020.1716254
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
N.
中科院分区:
文献类型:
--
作者:
Shutoh;N.
We derive the asymptotic null distribution of Hotelling’sT2-type and likelihood ratio test statistics using two-step monotone sample under an elliptically contoured pattern-mixture model up to the orderto investigate the robustness of the test statistics with respect to nonnormality, whereNdenotes the total sample size. Using some matrix algebra, we obtain more simple expression of the test statistic, reducing the amount of the calculation required for obtaining the main result. The main result indicates some remarkable properties with respect to their distribution up to the ordereach test statistic obtained using two-step monotone missing data exhibits a lower effect of nonnormality when compared with the statistic obtained using listwise deletion, and the upper percentiles of each test statistic exhibit lower values when the kurtosis parameters are positive and large. The main results are applied to extend the Bartlett-type correction to the test statistics under an elliptically contoured pattern-mixture model. Monte Carlo simulation demonstrates that the test statistics exhibit the aforementioned distributional properties and that our proposed tests outperform those obtained by assuming multivariate normality in aspects of controlling type I error exactly. Furthermore, the application of our proposed tests to an actual dataset is presented.
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影响因子:
1.5
作者:
Shutoh;N.;Nishiyama;T.;Hyodo;M.
通讯作者:
M.
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
D. Neuhoff
通讯作者:
D. Neuhoff
影响因子:
1
作者:
Megan M. Romer;D. Richards
通讯作者:
D. Richards
DOI:
10.1080/03610926.2019.1591453
发表时间:
2020
期刊:
Communications in Statistics - Theory and Methods
影响因子:
--
作者:
Jianqi Yu;K. Krishnamoorthy;Yafei He
通讯作者:
Yafei He
影响因子:
0.9
作者:
A. Batsidis;K. Zografos
通讯作者:
K. Zografos