you definitely put me on the right way, i going to study your indications, and i'll try to do it by my self. I am very exciting with mathematica, when i see the videos i think that is awesome what you can do with some code lines. I really appreciate your help

thank you very much for your help, well first of all i going to try to write the most clear that i can (i'm not an anglo speaker) i'm learning english and mathematica.

I have this data base (this are not the real data) with answers of an perception scale (from A1 to A9), and i have another variables like gender, age etc. I would like to know how to compare all this vectors, for example all the means from A1 to A9, and if there more influenced by age or gender, i going to add the excel file.

I appreciate your help

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i'm working from an spreadsheet, you need that sheet?