Answer:
I would study people's behavior without mobile phones
Explanation:
My hypothesis would be: People become lost once their mobile phones are taken away from them.
I would select a group of people, different genders and ages, and tell them to spend a week without using their mobile phones at all. I would observe their behavior and their reaction to the fact that they would not be available to everybody 24/7. I'm convinced that they would not know how to communicate properly any longer, or how to go about their choirs without the help of the internet. I think that they would become angry and irritable, even violent, without their phones during the duration of my experiment.