On the Likelihood Ratio Test for a Shift in Location of Normal Populations
正态总体位置突变的似然比检验AI 解读 ↓
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An alternative to the hypothesis that the sequence X 1 ···, X n are independent and identically distributed normal random variables, with mean μ and variance σ2, is that the location parameter μ shifts at some unknown instant. The null distributions of likelihood ratio test statistics are given by Hawkins (1977) for the two cases of known and unknown σ2. Unfortunately, the null distribution for unknown σ2 obtained in that article is incorrect. In this article the correct null distribution is found and a numerical integration technique is used to obtain standard percentage points for n = 3(1)10. A Monte Carlo method is used to obtain additional standard percentage points for n = 15(5)50.