ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480842

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

A modified up-and-down method for sensitivity testing (all-or-none assays) is presented with maximum likelihood estimates of LD50tabulated for all sample sequences for nominal sample sizeN≤ 6. Approximate estimates for larger sample sizes are given. The design uses sequentially determined test levels and sequentially determined sample sizes. The estimates have mean square error approximately independent of the chosen starting level of the test sequence and the spacing between test levels. The actual sample size rarely exceeds the nominal sample size by more than two for moderately well chosen starting levels. Examples of the use of the method are given for two analyses of variance designs.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480843

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

The paper presents the results of some numerical evaluations concerning the performance of the TSPRT, and characterizes the situations in which the tsprt is superior to some alternative procedures. Graphs for the application and study of the TSPRT are also presented, and some suggestive results of additional computations are discussed. The calculations are based on the formulae of T. W. Anderson [1].

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480844

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

The concept of analytical sample surveys is discussed in general, and a double sampling scheme is proposed for certain situations. Emphasis is placed on the presentation of a method which can be used to solve a certain class of problems.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480845

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

When response errors are studied by means of record checks, the possibility exists that matching errors are made in relating responses to the corresponding record data. Two simple models are developed for matching errors, and the implications of such matching errors on various measures of response errors are studied. The models are applied to the data from a record check study, and it is found that relatively small imperfections in the matching process can lead to substantial bias in estimating the relationship between response errors and “true” values.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480846

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

A general model for the evaluation of partial transfer evidence is developed in this article. This model is less restrictive than were the original models presented in an earlier paper, thus allowing it to be applied to a more general class of situations. A Bayesian approach to the problem of evidence evaluation is explored, and the probability of error calculated in the Bayesian model is shown to be a reasonable approximation to the probability of possible error calculated in the general model when these probabilities are small.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480847

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

A model is described which leads to an analysis of data on the sequence of sexes in human families, particular attention being given to the detection of a correlation between the sexes of adjacent sibs. Three sources of potential confounding with this correlation are discussed. The method of analysis avoids any confounding with the effects of voluntary limitation of family size, or with the effects of variation in the probability of a male from birth to birth within a family. It is more difficult to separate the effect of correlation between the sexes of adjacent sibs from the effect of variation between families in the probability that a child born to the family will be male. The problem was solved in the present investigation by using an auxiliary analysis to show that families did not, in fact, differ in this probability. If this were not so, a separation of the two factors could still have been made by an additional analysis referred to in the paper.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480848

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

A Bates-Neyman model is applied to four sets of accident data obtained in a study of childhood accidents. In each case, the model fits the data well. The inference is therefore tenable that the assumptions on which the model is based describe the processes underlying the observed accident distribution. For our purpose, the crucial assumptions are, first, that there are differences in accident liability within each of the groups of children studied and, second, that these differences persist over time.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480849

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

摘要:

A new discrete distribution arising from a Poisson distribution when the prior distribution of the parameter involved in uniform, has been obtained and its application in an accident proneness model is indicated. The posterior distribution of the parameter turns out to be a truncated gamma distribution and it is noted that the posterior distribution corresponding to a truncated prior distribution is simply the truncation of the posterior corresponding to the untruncated prior.

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480850

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor

ISSN:0162-1459    

DOI:10.1080/01621459.1965.10480851

出版商:Taylor & Francis Group    

年代:1965

数据来源: Taylor