摘要:

Attention is focused on contributions of statisticians to analysis of environmental health problems caused by pollutants. Of importance are statistical inputs into analysis of time series data on environmental pollutant concentrations, the epidemiological analysis of changes in public health patterns stemming from exposure to pollutants, and the analysis of toxicological studies of pollutant effects in animal models. Expertise must also be directed toward handling the theme of uncertainty in the pollution data base, and to optimizing the use of resources and tactics in research aimed at protection of human health and the environment against the effects of pollutants.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479183

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

Separate Poisson distributions were evaluated via several hypotheses tests for each of the 16 teams in the National Hockey League using 1973–74 goals for and goals against both home and away. After examining independence of goals for and goals against, they in turn were used to explain order of finish for the 16 teams. The results were quite surprising.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479184

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

Some experiences with the use of student projects in experimental design courses at Wisconsin are described. Each student is given the opportunity of selecting a problem of direct interest to him/her, designing and performing an experiment, collecting and analyzing the data. Some ideas with regard to pedagogy and the use of simulated data are also discussed.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479185

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

This paper proposes a framework for the development of instruments to measure content learning and problem-solving skills for the introductory statistics course. This framework is based upon a model of the problem-solving process central to statistical reasoning. The framework defines and interrelates six measurement tasks: (1) subjective reports; (2) reports concerning truth, falsity, or equivalence; (3) supply the appropriate missing information in a message; (4) answer a question based upon a specific message; (S) reproduce a message; and (6) carry out a procedure.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479186

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

I shall describe a practical classroom exercise in applied statistics, which has an impressive effect on the students who are beginning to learn statistics. This is based on a remarkable paper by Fisher (1934) on methods of ascertainment.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479187

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

The lognormal distribution is useful for approximating the distributions of such input variables as costs, sales, market share, etc. required in Monte Carlo simulations of business decisions. An easy way to represent such distributions is by the tenth and ninetieth percentiles and the mode. Such representation, however, does not permit direct calculation of the usual characterizing parameters (θ, γ, and δ). An empirically-determined rational function is given by which the median can be approximated from the mode, which then permits direct calculation of θ, γ, and δ.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479188

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

A discrete uniform distribution is defined over the integers 1, 2, …,k.Following Tenenbein, who investigated the point estimation ofkfor a sample drawn without replacement, this paper considers a number of point estimators ofkfor sampling with replacement and presents conservative confidence sets forkfor both methods of sampling.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479189

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479190

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479191

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

A practical computer program is described for Fisher's randomization one-sample and two-sample tests of location. Two heuristics permit most of the permutations to be counted implicitly rather than explicitly. The heuristics, together with careful program organization, yield a very efficient program.

ISSN:0003-1305    

DOI:10.1080/00031305.1977.10479192

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor