Illustrations of the Use of a Truncated Sequential t-Test

Article

Suich, Ronald C.; Iglewicz, Boris   (1974, ASQC)   University of Akron, Akron, OH; Temple University, Philadelphia, PA

Journal of Quality Technology    Vol. 6    No. 4
QICID: 5178    October 1974    pp. 196-201
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Article Abstract

In situations where the cost of sampling is high, sequential procedures may be used to reduce this cost. However, many of these procedures have a number of undesirable drawbacks, such as the possibility that an extremely large sample size may be needed before a decision is reached.This paper illustrates the use of a sequential t-test which is truncated and has other desirable features. Several examples, along with tables of the critical values and comparisons with other types of t-tests are provided.

Keywords

Sequential methods,Statistical tests,Sample size


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