No CrossRef data available.
Article contents
Extract
Most statistical techniques are based on a sample of fixed size n. This may be because n is chosen beforehand or because it is dictated by the circumstances. Sometimes, however, the members of the sample occur one after the other and we can then use sequential methods.
A sequential sampling scheme gives us a ‘stopping rule’ for deciding, after observing each successive member of the sample, whether we can stop sampling and reach a decision or whether we must examine another member.
As an example take the problem of deciding between hypotheses H0 and H1 that a parameter θ takes one of two values θ0 and θ1 respectively, using Wald's Sequential Probability Ratio (SPR) test.
- Type
- Expository Articles
- Information
- Copyright
- Copyright © Institute of Actuaries Students' Society 1970
References
BRIEF BIBLIOGRAPHY
3. Johnson, N. L. and Moore, P. G.
Application of sequential methods to mortality data, J.S.S. 14, Part 1, p. 84 and Corrigendum, J.S.S.
15, Part 1, p. 90.Google Scholar
5. Armitage, P.
Some sequential tests of Student's hypothesis, J.R.S.S. Series B, 9, 250–63.Google Scholar
6. Blackwell, D, and Girshick, M. A.
Theory of games and statistical decisions (1954). Wiley, New York.Google Scholar