Android Hypothesis Testing Calculator App

I'm looking for a proficient Android developer to create a mobile application that serves as a statistical calculator, specifically for hypothesis testing. The app should be able to perform the following tests: t-tests, Chi-square tests, and ANOVA.

Key Requirements:
- Extensive knowledge of hypothesis testing and its associated statistical tests.
- Proficiency in Android app development.
- Previous experience with developing scientific or statistical calculators will be a plus.
- Ability to create a user-friendly interface.

Please provide examples of similar projects you have worked on.