ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01006.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

SummaryA nomogram for confidence intervals and exceedance probabilities.In this paper two problems are considered regarding the probability β that an observation on a normally (μ, σ2)‐distributed random variable exceeds a given value W:If μ and σ2are unknown, the two problems are as follows:1)if Wis given, to determine a confidence interval for β and2)if β is given, to determine a confidence interval for W.For these two essentially equivalent problems graphs are given from which the confidence intervals can be determined. The graphs are given in terms of:and are based on an approximation for the distribution

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01007.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

SummaryThis paper is a report on the examination for „Statistisch Analyst (Algemeen gedeelte)”, 1957. It presents the examination papers, brief solutions and some comme

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01008.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01009.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01010.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

SummaryTheory and practice of sampling by attributes.This paper brings a survey of present day theory and practice of sampling by attributes. In section 2 the main points in the theory of OC‐curves are recapitulated. Section 3 lists the various features which people have attempted to incorporate in sampling tables, and the various factors which influence our choice of a sampling plan. Subsequent sections discuss economic theories, the importance of the distribution of the precentage of defective items over the inspection lots, the relation between sample size and lot size, and some of the existing sampling tables. In a final section the possibilities for further improvements in existing sampling practices is considered. One conclusion is that in many situations a constant sample size regardless of lot size would have very definite advantage

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01011.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

SummaryInternational statistics.Report of a lecture by Professor G. Goudswaard on international statistics. The speaker stressed the difficulties of comparing national statistics, as a result of differences in definitions, scope and classification of the statistics, peculiarities of language and structural and legal idiosyncrasies of the countries concerned. He sketched the activities of the international organisations in this field, especially by producing standard classifications for causes of death, international trade, economic activities and occupations. He ended by indicating their limitations.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01012.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

SamenvattingDe statistische problemen van stelsels van simultane economische relaties.Dit artikel handelt over de schattingsproblematiek van stelsels van simultane vergelijkingen in de economie. Na een uiteenzetting van een aantal essentiele begrippen in § 2 (zoals structurele en herleide vorm‐vergelijkingen, volledigheid van net stelsel, exogene en endogene variabelen, tevoren bepaalde en gezamenlijk afhankelijke variabelen) worden in § 3 de klassieke veronderstellingen gespecificeerd waaronder schatting van de coefficienten van de vergelijkingen plaats heeft. In § 4 wordt de methode van kleinste kwadraten in twee ronden behandeld, in § 6 een aantal verwante schattingsmethoden; § 5 geeft een korte uiteenzetting van het identificatieprobleem.De verdere bijdragen hebben betrekking op het gebruik van principale compo‐nenten van tevoren bepaalde variabelen voor het geval het aantal van deze variabelen niet gering is in vergelijking met het aantal waamemingen (§ 7); op een iteratieve methode die gebruikt maakt van alle a priori informatie van het stelsel (§ 8); op de schatting uit eindige steekproeven benaderd aan de hand van een reeksontwikkeling naar machten van het aantal waamemingen (§ 9–11); en tenslotte op de relatie tussen dit onderwerp en dat van de canonische correlatie‐theorie (§ 12), zulks in verband met een doelmatige definitie van een correlatie‐coëfficiënt die de mate beschrijft waarin de variatie van de groep van tevoren bepaalde variabelen weerspiegeld wordt in de variatie van de groep van gezamenlijk afh

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01013.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

SummarySome remarks on the intensity of local telephone and postal traffic.In this paper a method is described to explain the trend of the intensity of the local telephone traffic in a certain area by means of the number of exchange lines, the telephone density (number of exchange lines per 1000 inhabitants), and the real national income per head of the population as explanatory variables. In connection with the intercorrelation between the number of exchange lines and the density, which would make the regression coefficients unreliable, the exponent of the number of exchange lines has been fixed by means of a cross section of telephone networks.The method was applied to the Amsterdam telephone network; it appeared that the development of the local telephone intensity over a long period could be explained satisfactorily. Further, extrapolation offers the possibility to estimate future investments.For the local postal traffic, too, it was examined whether the trend could be explained. It appeared, however, that it was not very well possible to do so because the basic data (which are nery difficult to collect in practice) were not sufficiently accurate. It was possible, however, to determine the relation, in a cross section, between the intensity of the local letter mail and the number of inhabitants per community.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01014.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY

摘要:

Book reviewed in this article:Traité de statistique théorique et appliquée, D. DuguéWahrscheinlichkeitstheorie, H. RichterIntroduction to Multivariate Statistical Analysis, T. W. AndersonA Course in Multivariate Analysis, M. G. KendallThe Mathematical Theory of Epidemics, Norman T. J. BaileyModels of man, social and rational mathematical essays on rational human behavior in a social setting, Herbert A. SimonSurvey methods in social investigations, C. A. MoserSampling in Sweden. Contributions to the methods and theories of sample survey practice, Tore Dale

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1959.tb01015.x

出版商:Blackwell Publishing Ltd    

年代:1959

数据来源: WILEY