data distribution

  1. H

    examine whether data sets come from the same ditribution

    hi, i want to check whether the two data sets can be drawn from the same distribution. can i do it with chi-square test? what are the assumptions i need for it? if i can't use chi square test - what can i do? notes about the data sets: - discrete - mostly increasing (in particular -...
  2. K

    Scatterplot relationship issue.

    Hi, the data below is just a sample of the data I am trying to enter into a scatterplot. The issue is that a previous correlation test shows a p value of 0.011, a clear relationship. However, when I took the averages of 196 entries of the data below, the scatterplot shows little...
  3. K

    What asymmetric distribution represents this data?

    Hello, I have this data: Bin particle_240 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 2 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 1 19 3 20 1 21 2 22 3 23 10 24 8 25 6 26 5 27 7 28 14 29 11 30 14 31 14 32 16 33 17 34 12 35 17 36 16 37 17 38 26 39 19 40 26...
  4. A

    Distribution of a subset of the complete sample

    Dear all, My question can be easily misunderstood, so please allow me to briefly explain the experimental conditions. I have measured a variable from 120 individuals in total, 60 of one genotype and 60 of another. The distribution of the complete sample of each of the two genotypes is...
  5. D

    Mean and Median for testing data distribution

    Hi, I noticed that in the following articles data distribution is tested via checking for >10% difference in mean and median. http://www.sciencedirect.com/science/article/pii/0022175996000130 http://www.sciencedirect.com/science/article/pii/002217599500078O However, when I follow the...
  6. H

    if i use mann-whitney,is it okay if i still use mean (not median) to compare 2 group?

    so in my minor thesis, i compare 2 groups (deaf and normal children; n1=n2=15) in their forward and backward digit span scores and word-list memory task (wlmt) scores (there are 4 scores: 1st, 2nd,and 3rd trial, and the mean scores of all three trial). in the normality tests, distribution is...