ISSN:
1572-9052
Keywords:
Balanced incomplete block design
;
connectedness
;
efficiency
;
group divisible design
;
robustness
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
Notes:
Abstract In this paper the problem of finding the design efficiency is considered when a single observation is unavailable in a connected binary block design. The explicit expression of efficiency is found for the resulting design when the original design is a balanced incomplete block design or a group divisible, singular or semiregular or regular with λ1〉0, design. The efficiency does not depend on the position of the unavailable observation. For a regular group divisible design with λ1〉0, the efficiency depends on the position of the unavailable observation. The bounds, both lower and upper, on the efficiency are given in this situation. The efficiencies of designs resulting from a balanced incomplete block design and a group divisible design are in fact high when a single observation is unavailable.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00050708
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