© 1971 by Biometrika Trust
Inference about the change-point from cumulative sum tests
Stanford University
* Now at Imperial College, London
The point of change in mean in a sequence of normal random variables can be estimated from a cumulative sum test scheme. The asymptotic distribution of this estimate and associated test statistics are derived and numerical results given. The relation to likelihood inference is emphasized. Asymptotic results are compared with empirical sequential results, and some practical implications are discussed.
Key Words: Estimation of change-points Cumulative sum charts Likelihood ratio tests Random walk
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