percentage comparison

  1. P

    How to analyze extremly left-skewed data?

    Hey everyone, I am facing some trouble with the data of my master thesis and so I am looking for more general advice on how to deal with this topic: I am investigating between the % of family ownership in family firms and the acquisition stake (also in %). Therefore, I planned to use a Tobit...
  2. B

    Multiple Comparison of Percentages from Binary Within-Subjects Reponse Trials

    I have searched and read a lot about this but I'm still unsure which test is suitable for the following situation. Data come from a few hundred participants who saw, in each of several trials, a pair of stimuli and made a binary judgment (indicating which stimulus in the pair has a certain...
  3. C

    Bar plot for percentages of survey response data

    Hello, I am new to using SPSS and having some trouble figuring out a way to plot some bar graphs of some survey data that I have. The data are from a multiple choice survey where participants could select one or more items. Each of their responses are stored in separate variables. If they...
  4. R

    Percentage Prevalence comparison (non-independent groups)

    Hi all! I have a dataset which I think could potentially be very exciting but I am struggling to find how to analyse it! We have gathered lots of information on the percentage if individuals who exhibit different forms of the same class of behaviour (categorical data- present/absent). All...
  5. S

    Comparing percentages

    I am doing a study, and have gathered the following data: A patient population was divided into 3 categories: Young patients (n=19) / Middle aged patients (n=66) / Old patients (n =20) Based on a questionairre, we have categorized each patient into 2 categories: "Yes family history of...
  6. A

    Comparing percentages

    I'm having trouble wrapping my head around some of this. I need to determine whether or not there is a statistical difference between two percentages. The data are as follows: In population A there are 525 teeth and out of these, 114 have cavities, thus 21.71%. In population B there are 413...