Ӧ�ø���ͳ�� 2009, 25(6) 561-570 DOI:      ISSN: 1001-4268 CN: 31-1256

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Hayter\ucite{4}�еļ���), ���ŵ����ڲ����˸��̵������Ƚϵ�������,
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���ĵ�Ŀ�������һ��������ھ�������Lee and
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Confidence Intervals for Successive Comparisons of Ordered Treatment Effects
Zhao Haibing
School of Statistics and Management
Abstract: present a new procedure for
making successive comparisons between ordered treatments. Their
procedure has important applications for problems where the
treatments can be assumed to satisfy a simple ordering, such as for
a sequence of increasing dose-levels of a drug. The advantage of
their procedure is that it provides more chance to detect when
changes in the treatment means occur than other test procedures (for
example: test in Hayter\ucite{4}). The disadvantage of their
procedure is that it is not as powerful as other test procedures. In
this paper we propose a test procedure which try to keep the
advantage of Lee and Spurrier's procedure and promote the power
performance of their test procedure.
Keywords: Simple ordering   pairwise comparisons   simultaneous confidence intervals  
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