ivan2011
04-06-2011, 03:33 PM
Hi all! :wave: This one is for the stats pros out there...
The data is a small sample, n=30.
There is just one variable, data for which is of ordinal level (strictly speaking), but can be argued to be interval.
This is a count data, with numbers ranging from 0 to 15 for each case.
Strong positive skew and deviation from normal distribution (tried numerous transformations - non of which help). Looks like a poisson distribution.
Hypothesis: The scores should differ from zero. In other words, I'm only using one sample (i.e., I'm not comparing one group to another group), and trying to see if the scores for that group differ from "0".
Any ideas which test should be used to test this hypothesis? Also, which software can run such test? :confused:
Any help would be GREATLY appreciated!! I've looked through numerous volumes on stats analysis and can't find the answer...
Thnks!
The data is a small sample, n=30.
There is just one variable, data for which is of ordinal level (strictly speaking), but can be argued to be interval.
This is a count data, with numbers ranging from 0 to 15 for each case.
Strong positive skew and deviation from normal distribution (tried numerous transformations - non of which help). Looks like a poisson distribution.
Hypothesis: The scores should differ from zero. In other words, I'm only using one sample (i.e., I'm not comparing one group to another group), and trying to see if the scores for that group differ from "0".
Any ideas which test should be used to test this hypothesis? Also, which software can run such test? :confused:
Any help would be GREATLY appreciated!! I've looked through numerous volumes on stats analysis and can't find the answer...
Thnks!