摘要:

AbstractIt is the theme of the paper that statistics as a body of data are vastly more useable and useful when statistics as a discipline underlies or guides their collection and exploitation. While this statement might, in the abstract, be accepted by the profession, the extent to which it is practised can substantially be improved. Within this broader context the paper focuses on the role of statistical analysis, identifies and discusses different types of analytical activities, explores both the significance of analytical activities for official statistical agencies and the necessary restrictions on such agencies' analytical activities. It concludes by arguing in favour of more data analytical work both by academic personnel and staff of official statistical agencies and provides examples of how such work would enhance the real, as well as the perceived, value of statistics.

ISSN:0319-5724    

DOI:10.2307/3315212.o

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractOne of several indicators of cultivated area produced by Statistics Canada combines, by regression estimation, remotely sensed data with ground data collected from a survey with a complex design. This paper presents the methodology used to collect and process data from each source. Four regression estimators along with their variance estimators are given. Of these, two are poststratified. Results obtained from two applications are compared.

ISSN:0319-5724    

DOI:10.2307/3315213

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractVariance estimation techniques for nonlinear statistics, such as ratios and regression and correlation coefficients, and functionals, such as quantiles, are reviewed in the context of sampling from stratified populations. In particular, resampling methods such as the bootstrap, the jackknife, and balanced repeated replication are compared with the traditional linearization method for nonlinear statistics and a method based on Woodruff's confidence intervals for the quantiles. Results of empirical studies are presented on the bias and stability of these variance estimators and on confidence‐interval coverage probabilities and length

ISSN:0319-5724    

DOI:10.2307/3315214

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractThis paper is concerned with the asymptotic properties of the converged solution of the raking‐ratio estimator. After a description of the raking‐ratio estimation procedure, we show that the estimator can be unbiased in the presence of nonresponse if the nonresponse has a particular structure. We also give the asymptotic variance of the estimator. Finally, the results of two numerical applications are presen

ISSN:0319-5724    

DOI:10.2307/3315215

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractThe concept of generalized systems for survey processing has gained importance in recent years because of resource constraints. Statistics Canada has adopted a policy to develop generalized systems to the extent that is feasible and cost‐efficient. A generalized edit and imputation (E&I) system is of prime importance. An E&I system is proposed that describes the overall edit and imputation function as comprising five component functions: edit specification, edit analysis, edit application, error localization, and imputation. Implementation of the E&I model, especially for numerical data, is discussed. The focus is on methodology rather than system

ISSN:0319-5724    

DOI:10.2307/3315216

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractThis paper considers the problem of producing quarterly estimates of provincial and national vital events. Modern time‐series methods would appear to be a promising tool for the short‐range forecasts required for the birth, death, and marriage series. Considerations in the choice of a suitable model are described, and a possible model for the marriage data is illustra

ISSN:0319-5724    

DOI:10.2307/3315217

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractTime series analysis is applied to the revisions made to a subset of the Canadian National Accounts, in order to determine if, and how, the preliminary figures currently released can be improved toward the first annually figures. Better estimates of period‐to‐period change could thus be obtained. The main findings are that the preliminary figures could be improved, and that this would follow from a modification to the benchmarking methods.An English version of this paper is available upon requ

ISSN:0319-5724    

DOI:10.2307/3315218

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractCanadian financial flows represent a detailed set of time series, satisfying a number of accounting identities. When seasonal adjustments are made using the X‐11‐ARIMA program, the original linear constraints no longer hold. This article introduces a procedure that recovers consistency for seasonally adjusted financial flows. A weighted least squares minimization method is used to change as little as possible the individually seasonally adjusted financial flow series. Results pertaining to a restricted set of Canadian financial flows are presen

ISSN:0319-5724    

DOI:10.2307/3315219.o

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractStatistics Canada, like most statistical bureaus, is concerned with problems affecting the accuracy, the consistency, and the usefulness of seasonally adjusted series. The most serious problems affecting the accuracy of seasonally adjusted data in the eighties are related to changes in trading‐day variations caused by changes in consumers' patterns and to the effect of the early arrival of Easter in March (1986) and the beginning of April (1980, 1983, 1985, 1988). The problems affecting consistency mainly result from the lack of uniform practices for the seasonal adjustment of related series and economic aggregates. This lack of uniformity is present in (1) the seasonal adjustment of current observations, which can be done by applying the X‐11‐ARIMA program in four different modes; and (2) the seasonal adjustment of key economic and social indicators, which are aggregates and give different results if adjusted directly or indirectly (through the aggregation of each seasonally adjusted component). Finally, the problem of usefulness of seasonally adjusted data manifests itself for series that are largely irregular, posing then the need for further smoo

ISSN:0319-5724    

DOI:10.2307/3315220

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY

摘要:

AbstractIn conducting surveys, survey‐takers impose upon respondents certain cognitive and perceptual tasks the difficulty of which will depend upon a variety of factors. This paper examines the types of questions asked in the Canadian Labour Force Survey with an eye to assessing their “difficulty” and to identifying covariates of difficulty, with respect to both the nature of the information sought and the circumstances of the reinterview. The conclusions are extended to retrospective surveys, where response errors often lead to estimates that are seriously b

ISSN:0319-5724    

DOI:10.2307/3315221

出版商:Wiley‐Blackwell    

年代:1988

数据来源: WILEY