I am fairly new in the field of statistics. I have a question about study design and outcome considerations.

I have a overall studygroup of 3950 observed time stamps.

With several subfilters I reached a sample size of 22-25 in the last 7-8 years.

Is there a possibility to perform a prediction of future cases based on this data for the next 2 years?

Can I vary this predictive data by using different significance levels and statistical power?

I hope this does not sound too cryptic. All I want to to do is a predictive outcome intervall for the subset I used so far in the near future.

If you have further questions or suggestions, feel free to ask.