Sunday, August 22, 2010

What is different between Descriptive statistics and Inferential statistics?

Could someone help me with clear examples?


Thank you

What is different between Descriptive statistics and Inferential statistics?
Descriptive statistics just describe the data. So for example averages (means), highest, lowest, most common etc.





Inferential statistics are performed using statistical tests (T-Tests, ANOVAs, Regressions etc.). Instead of merely telling you what the data is, they tell you if the data is important.





So for example you may give two groups of people a test to perform. One of these groups gets given a particular drug, while the other group does not. Using differential statistics we can see what the average scores are for each group, but with inferential statistics we can see if they're significantly different.





Hope this helps.


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