Design and conduct survey for financial management

Please   design a survey or questionnaire to get the information about one aspect or characteristics about the student in our class or our campus or even the whole university, such as family structure, mobile brand name that the students like, the time spent on internet, or what they do online etc.

    Four students form a group and  chooses one topic (or to be specific one variable) and conduct survey or questionnaire among the students. 

    Please present  your survey design and  result in table or graph. and give a brief introduction about your survey  and analyze what is population, sample, parameter and statistic.