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Metrika

, Volume 55, Issue 3, pp 199–208 | Cite as

Robustness of Williams Square change-over designs

  • Cini Varghese
  • A. R. Rao
  • V. K. Sharma
  • 48 Downloads

Abstract.

In literature, Williams Square change-over designs balanced for first residual effects of treatments have been proved to be universally optimal. Here, an attempt has been made to show that these designs are robust against missing of last α [≤v−1; v being the number of periods in the design for v treatments] observations from an experimental unit.

Key words: Williams Square Designs Efficiency criteria Universally optimal 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Cini Varghese
    • 1
  • A. R. Rao
    • 1
  • V. K. Sharma
    • 1
  1. 1.Indian Agricultural Statistics Research Institute, New Delhi – 110 012 (e-mail: cini_v@iasri.delhi.nic.in or cini_v@yahoo.com)IN

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