Talk:F-test

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Mathematics rating:	Stub Class	Mid Priority	Field: Probability and statistics
One of the 500 most frequently viewed mathematics articles.
Please update this rating as the article progresses, or if the rating is inaccurate. Click to show/hide comments. Please add to or update the comments to suggest improvements to the article. Geometry guy 21:08, 9 July 2007 (UTC)

Hey, I just added the blurb about calculating the F-test statistic. I don't have my textbook handy or I'd have noted what conditions needed to apply for this particular technique to be usable. I'm not entirely happy with the layout, so hopefully somebody else will nudge the fraction around until things look nicer. - David A. Spitzley, 12/1/04 10:52 am EST

Contents 1 History: F stands for what? 2 [A suggestion] 3 This article is almost complretely inpenetrable to the average reader 4 [Error in Formula?] 5 Improvement required 6 Call for Help 7 General Formula

[edit] History: F stands for what?

I think it stands for Fisher, so-named in his honor by Snedecor. Don't quote me. Check it out. The first anovas were done by Fisher.

[edit] [A suggestion]

I think it would be nice, if one can proved the standard form of reporting the F score: F(within group, between group)= ...

Not clear Dfarrar 12:53, 18 April 2007 (UTC)

[edit] This article is almost complretely inpenetrable to the average reader

Needs simpler explanation including examples of use.GraemeLeggett 08:13, 7 September 2007 (UTC)

[edit] [Error in Formula?]

I think the RSS in the Numerator should be RSS_2, not RSS_1, see e.g.: http://www.graphpad.com/help/Prism5/prism5help.html?howtheftestworks.htm -- user withouth account (sorry)

Insertformulahere

[edit] Improvement required

I am unhappy about the statement

"The general formula for an F- test is: F = (between-group variability) / (within-group variability)"

... since F-tests are used when there are no obvious "groups". Melcombe (talk) 09:24, 10 April 2008 (UTC)

[edit] Call for Help

Can someone put out a call for help to the stat email lists or the statistics teaching email lists? Surely this does not have to be painful. WikiStat (talk) 18:56, 14 April 2008 (UTC) WikiStat

[edit] General Formula

I had the chance to look up the general formuela again I'd stand by it for two reasons:1) SPSS output uses this notation for one way ANOVA 2) I looked this up in my stats book from college and it is was as I remembered it. 143.109.134.157 (talk) 04:23, 22 April 2008 (UTC)