摘要:

The familiar inequalities relating the arithmetic, geometric, and harmonic means are derived as corollaries to likelihood ratio tests.

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474390

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

摘要:

A χ2test with a rejection region in the low tail is sometimes used to test whether data could plausibly have been generated by random sampling. A data set, taken from the statistical literature, is exhibited, which is suitable for demonstrating this test in the classroom.

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474391

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

摘要:

This article proposes a way to make the business-statistics course more relevant to future managers by designing the course around the activity of problem solving. A structured problem-solving framework is proposed, and ways to teach a variety of data analysis tools in the context of problem solving are outlined. This design is appealing because it emphasizes the use of statistics and data analysis in an activity that is important to managers. Students can see how to use statistical thinking in a context that will be important in their future careers.

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474392

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

摘要:

In this sectionThe American Statisticianpublishes announcements and selected reviews of teaching materials of general use to the statistical field. These may include (but will not necessarily be restricted to) curriculum material, collections of teaching examples or case studies, modular instructional material, transparency sets, films, filmstrips, videotapes, probability devices, audiotapes, slides, and data deck sets (with complete documentation).

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474393

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

摘要:

This department publishes articles of interest to statistical practitioners. Innovative applications of known methodology may be suitable, but sizable case studies should be submitted to other journals. Brief descriptions and illustrations of new developments that are potentially useful in statistical practice are appropriate. Acceptable articles should appeal to a substantial number of practitioners.

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474394

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474396

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474397

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

摘要:

The purpose of this paper is to examine the impact of low statistical power on the process of research replication. The traditional model of interpreting the success of replication efforts emphasizes the results of statistical significance testing. Serious errors in the interpretation of replicated studies may occur if the focus is on only statistical significance. Correct interpretation of the probability of replication must include a consideration of statistical power and related factors such as effect size and type 2 error rates. Examples are provided illustrating the importance of power, effect size, and type 2 error rates in developing a scientific consensus based on repeated experimental trials. The establishment of an empirical consensus is essential to scientific progress and may be improved by the use of aggregated effect size, where the focus is on determining the degree of replication rather than a dichotomous decision based on the results of statistical significance testing. Consensus may be delayed if investigators continue to focus on the statistical significance of individual studies and ignore the effect size and statistical power of the investigations they conduct.

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474398

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

摘要:

Organizing to Count: Change in the Federal Statistical System.: Janet L. Norwood. Washington, DC: The Urban Institute Press, 1995. xvi + 94 pp. $19.95 (P). Reviewed by Fritz Scheuren

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474399

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor

ISSN:0003-1305    

DOI:10.1080/00031305.1996.10474400

出版商:Taylor & Francis Group    

年代:1996

数据来源: Taylor