Please post your code. PROC UNIVARIATE is one way to do percentiles as in this example: https://documentation.sas.com/?docsetId=procstat&docsetTarget=procstat_univariate_examples08.htm&doc...
output out=whatever pctlpts=2.5 97.5 pctlpre=p;
FULL explanation and documentation:
Just a note for the future, if you're using a PROC and cannot find the syntax you need to use or not sure how to use, check the Examples section. In this case, the one titled "Saving percentiles in an output data set" is pretty much exactly what you want.
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ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.
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