I used the core competency collaboration because I had to work in a group with Tayla. we did very well. our experiment was a hearing test. we found that a majority of the people we tested were aged 16-18 years and listen to loud music often, our results show that they can still hear high frequencies, possibly better than people who listen to less loud music. Our results support our hypothesis that people cannot hear past 20000 Hz. Nobody we tested could hear past 20000 Hz, majority of the people couldn’t hear past 17000 Hz.