# what test to choose?

#### bioinfosuite

##### New Member
Dear all,
I have generated this data for two categories and wanted to know if there are any statistical differences between them. in case there is differences, in which categories?

#### Miner

##### TS Contributor
Did you intend to say that you have data for two groups? And, are these count data?

#### bioinfosuite

##### New Member
Did you intend to say that you have data for two groups? And, are these count data?
yes indeed, two groups and count data.

#### Miner

##### TS Contributor
Your choices are limited as these appear to be nominal data. The typical test for nominal data is the chi-square test. However, the chi-square test is problematic with cell counts less than 5. Also, the counts are so large for class 5 that it will almost always result in statistical significance.

#### bioinfosuite

##### New Member
Your choices are limited as these appear to be nominal data. The typical test for nominal data is the chi-square test. However, the chi-square test is problematic with cell counts less than 5. Also, the counts are so large for class 5 that it will almost always result in statistical significance.