Topic
Coverage probability
About: Coverage probability is a research topic. Over the lifetime, 2479 publications have been published within this topic receiving 53259 citations.
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TL;DR: A measure to assess measurement agreement for functional data which are frequently encountered in medical research and many other research fields is proposed and formulae to compute the standard error and confidence intervals for the proposed measure are derived.
28 citations
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TL;DR: In this paper, the relationship between process potential index (Cp), process shift index (k) and percentage non-conforming (p) is depicted graphically and two-sided confidence limits for k and Cpk under two different scenarios are derived.
Abstract: The process capability index Cpk has been widely used as a process performance measure. In practice this index is estimated using sample data. Hence it is of great interest to obtain confidence limits for the actual index given a sample estimate. In this paper we depict graphically the relationship between process potential index (Cp), process shift index (k) and percentage non-conforming (p). Based on the monotone properties of the relationship, we derive two-sided confidence limits for k and Cpk under two different scenarios. These two limits are combined using the Bonferroni inequality to generate a third type of confidence limit. The performance of these limits of Cpk in terms of their coverage probability and average width is evaluated by simulation. The most suitable type of confidence limit for each specific range of k is then determined. The usage of these confidence limits is illustrated via examples. Finally a performance comparison is done between the proposed confidence limits and three non-parametric bootstrap confidence limits. The results show that the proposed method consistently gives the smallest width and yet provides the intended coverage probability. © 1997 John Wiley & Sons, Ltd.
28 citations
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TL;DR: In this paper, the authors derived the minimum sample size to ensure adequate coverage of nominal 95% confidence intervals by using the Edgeworth expansion for the distribution function of the standardized sample mean.
Abstract: Cochran's rule for the minimum sample size to ensure adequate coverage of nominal 95% confidence intervals is derived by using the Edgeworth expansion for the distribution function of the standardized sample mean. The rule is extended for confidence intervals based on the Studentized sample mean. The performance of the rule and Edgeworth approximations for smaller sample sizes are examined by simulation.
28 citations
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TL;DR: Stochastic geometry is applied to model the downlink coverage and intercellular handoff for 2-tier 5G Heterogeneous Network (5G HetNet) under cost deployment and cellular planning is studied whose objective is to reduce the total cost investment.
28 citations
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TL;DR: In this paper, the authors developed three asymptotic interval estimators using Wald's test statistic, the likelihood-ratio test, and the basic principle of Fieller's theorem.
Abstract: Summary This paper discusses interval estimation of the simple difference (SD) between the proportions of the primary infection and the secondary infection, given the primary infection, by developing three asymptotic interval estimators using Wald’s test statistic, the likelihood-ratio test, and the basic principle of Fieller’s theorem. This paper further evaluates and compares the performance of these interval estimators with respect to the coverage probability and the expected length of the resulting confidence intervals. This paper finds that the asymptotic confidence interval using the likelihood ratio test consistently performs well in all situations considered here. When the underlying SD is within 0.10 and the total number of subjects is not large (say, 50), this paper further finds that the interval estimators using Fieller’s theorem would be preferable to the estimator using the Wald’s test statistic if the primary infection probability were moderate (say, 0.30), but the latter is preferable to the former if this probability were large (say, 0.80). When the total number of subjects is large (say, 200), all the three interval estimators perform well in almost all situations considered in this paper. In these cases, for simplicity, we may apply either of the two interval estimators using Wald’s test statistic or Fieller’s theorem without losing much accuracy and efficiency as compared with the interval estimator using the asymptotic likelihood ratio test.
28 citations