Subject line: Chi Square with THREE sets of data... On Fri, 4 Apr 2003 19:12:10 +0100, "CK Christopher Kent" <[EMAIL PROTECTED]> wrote:
> Hi all... > > I've recently carried out a biological investigation in which I was > comparing the abundance of winkles on "three" different algal species. I > have three sets of data for each species each containing 15 results. So a > total of 45 readings. My hypothesis is that the winkles are equally > distributed on all three wrack species i.e. 33.3% on each. > I'm thinking of data where an alga is a one-cell critter; each alga has a number of 'winkles' (?); and there are 15 cells for species A, another 15 for B, and another 15 for C; -- and you presumably have continuous data, thus suggesting an F-test for these three groups. If it is like that, you don't have data for any sort of chisquared that I think of. Else, try again on what a 'winkle' is. -- Rich Ulrich, [EMAIL PROTECTED] http://www.pitt.edu/~wpilib/index.html . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
