摘要:

Abstract This paper gives an application of standard econometric techniques in the form of a simultaneous econometric model for the Dutch economy. The model has to serve two ends: (i) it should give an adequate description of the structure of the Dutch economy, (ii) it should provide a procedure to predict the main economic variables for 1977.Our study has been based on real data. Therefore the paper begins with a report on the collection of the postwar observations on the relevant variables. Furthermore, every stage in the construction of the model and the econometric methods used will be described carefully. This will result in the presentation of the predictions for 1977, while their associated margins of error are given in terms of the estimated standard deviations of the prediction errors.The reader, who is only interested in the ultimate results, may turn to Subsection 5.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1977.tb00762.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

SummaryIn a course in elementary statistics for psychology students using criterion‐referenced achievement tests, the total test score, based on dichotomously scored items, was used for classifying students into those who passed and those who failed. The score on a test is considered as depending on a latent variable; it is assumed that the students can be dichotomized into the categories “mastery” (with scores on the latent variable above a cutting score), and “no mastery” (with scores below the cutting score on the latent variable). Two problems are considered: (a) How many students are classified incorrectly? Using the binomial error model a procedure is described for computing the classification proportions: p(mastery, passed), p(mastery, failed), p(no mastery, passed), and p(no mastery, failed), (b) What is the optimal cutting score on a test? Using a loss function a procedure for computing the optimal curring score is

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1977.tb00763.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

SummaryIn this paper some known formulae concerning overflow traffic have been derived in a simpler way than is generally done in literature, i.e. by using simple results obtained from elementary renewal theory.After the model has been introduced, the distribution of intervals between overflows is calculated by means of a recurrence relation. A generalization of Erlang's formula for the call congestion follows almost immediately. The last section the special case of Poisson input is discussed.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1977.tb00764.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

SummaryFive approximations in computing confidence intervals for the product‐moment correlation coefficient are compared. The α‐levels of the approximations are compared with three fixed nominal levels; for varying sample sizes and sample correlation values. It is recommended to use a method of RUBFN(or KRAEMER) [section 3d (3e)] for accurate approximations and a method of SAMIUDDIN[section 3b] for somewhat less accurate but quick res

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1977.tb00765.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1977.tb00766.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1977.tb00767.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY