LUCY
发表于 2025-3-23 12:16:33
le preparation methods. .• Part Four examines additional topics in sample preparation including automation, investigating aberrant potency results, green chemistry considerations for sample preparation and the ideal case where no sample preparation is required for sample analysis..
bacteria
发表于 2025-3-23 14:21:37
Peter J. Feibelmanects of two interventions in superiority clinical trials with multiple endpoints. Methods for sample size calculation in clinical trials where the alternative hypothesis is that there are effects on ALL endpoints are discussed in detail. The book also briefly examines trials designed with an alternat
勤劳
发表于 2025-3-23 20:02:55
Gert Ehrlichcome this shortcoming of the regression estimator defined according to (5.44) or (5.46), at least not in the case of unequal probability sampling; see also Särndal et al. (1992, p. 291). Moreover, counterexamples can be given that a specific regression estimator based on (5.44) has a larger variance
方便
发表于 2025-3-23 23:09:12
Tien T. Tsongnce, the following situation with four samples that we will further elaborate on in Example 12.3. Let the variable . stand for the cost, . for the profit, and . for the turnover. Obviously, the population totals obey the restriction . + . = .. Furthermore, it is assumed that variable . is observed i
不可救药
发表于 2025-3-24 04:34:38
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faction
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表两个
发表于 2025-3-24 10:56:46
N. I. Papanicolaou,G. A. Evangelakisimated. Parts I and II of the volume provide a novel and systematic treatment of sampling theory considered from the angle of the sampling autocorrelation coeff978-1-4419-2988-4978-0-387-21764-2Series ISSN 0172-7397 Series E-ISSN 2197-568X
Resign
发表于 2025-3-24 15:22:52
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anaphylaxis
发表于 2025-3-24 22:34:58
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时代
发表于 2025-3-25 03:12:30
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