Variance Smoothers

I am interested in whether there is a literature on variance smoothers. What I want to do is to plot the variance of a variable as a smooth function of the values of another variable. It would seem as though most of the methods for bivariate smoothers should work, but I can't find any theory on

Math Education of Mathematics Teachers

I would like to call your attention to a session at the Joint Statistics Meetings that those of you interested in statistics education might have overlooked. Session 279, The Importance of Statistics in the Education of Future Teachers reports on a project of the Conference Board of the

Message status - undeliverable

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Archives

Dear Sir: Am preparing a manuscript that won't be ready for publication in less than a year. Would like to refer its readers to the thread "On-line surveys" in the EDSTAT archives. Can you tell me the shelf life of such threads? Or better yet, I can no longer find the documentation for

Second Moment Web Site

I want to thank everyone who visited and provided feedback on Second Moment (http://www.secondmoment.org), the new Web site for applied statistics and analytics. The response has been extremely positive so far, and it appears that Second Moment is on the right track in its mission to bring

how to analyse variance

Hi, What kind of procedure should I use to compare the varience between different experimental groups? Thanks Erik = Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are

Re: how to analyse variance

On Mon, 31 Jul 2000, auda wrote: What kind of procedure should I use to compare the varience between different experimental groups? Well, that depends on a number of things: e.g., whether you wish to test a hypothesis, or produce a confidence interval; whether differences in the means

Re: Statistical Test for Biasing

It's hard to tell just what you have in mind. For one thing, it is not clear that "bias" is well-defined in the situation you describe, nor whether you are using the term in a technical or a colloquial sense. The responses I have seen have addressed some possible meanings you may have

Re: Variance Smoothers

Eric Turkheimer [EMAIL PROTECTED] wrote: What I want to do is to plot the variance of a variable as a smooth function of the values of another variable. It would seem as though most of the methods for bivariate smoothers should work, but I can't find any theory on the matter. [...] I

Re: Statistical Test for Biasing

Sorry -- my earlier reply was interrupted by someone attempting to use the telephone line. On Thu, 27 Jul 2000, Terry Chan wrote: I have numbers (arranged in a 2x2 contingency table - smokers/nonsmokers, respiratory disease/no disease) for our study population (of about 1,000). I also

Re: Math Education of Mathematics Teachers

Dick -- I'm staying 'til Friday to attend THAT SESSION. The discussions should be of interest to secondary teachers in the Indianapolis area. It would be great if arrangements could be made for teachers to attend THAT session without needing to register for the JSM. I think it is Session 281,