Which test? compare individual to known mean for group - statistical analysis method (Oct/20/2007 )
Hi all,
My problem is I have data (25 different skull measurements) from an individual animal that I would like to check against data regarding the same variables for 2 species to determine which it fits best. The complication is that the data for the species is from an old publication and only consists of no. sampled, mean and standard deviation for each variable (skull measurement). The raw data is unavailable. Is there a way that I can compare my single sample (individual) against the mean values from each species to see which it fits best???
I was thinking of doing one sample t test on each variable against individual and species data? with the individual data representing the "hypothetical mean" - Im not sure if this is valid.
any suggestions?
Thanks kindly
M
If your previous data has mean and SD, I think you can do statistical analysis between the two groups using t-test if your data is normal distribution. You just need to get your current group mean and SD.
Thanks for that. Only problem is that my 'current group' is an individual (hence no mean or SD). Im trying to ascertain which of 3 species this individual could be, I have the mean and sd (but not raw data used to derive them) for each variable for all 3 species. The answer appears to be obvious based on the data but I wanted to make sure it was statistically.