1. S

    Hypergeometric distribution appears to have hidden problems

    When I was writing a computer program to calculate hypergeometric distributions probabilities I had some funny results. This is because I just used the condition I found in a stats book. The book says: p(x) = formula with x =0;1;....;n where n is the size of the sample drawn and p(x) = 0...
  2. Q

    SPSS, co-occurence measure ?

    Hi, I want to see if two conditions always occur together, using SPSS. That is, I have some events that show a certain characteristic, let's call is 'X'. I want to check when this characteristic appears, and if it is bound to condition A or B. Furthermore, I want to know if it there is any...
  3. O

    One-Way ANOVA and tongue testing

    I have a pretty basic question about using a one-way ANOVA. I am performing an oral tribology experiment on pig tongues which basically means I am testing the friction of various mouthwash products after applying it to the tongue. There are approximately 10 of these products that I need to test...