What major writing assignment #1 is asking me to do.

In this assignment it is required for me to interview a notable professional in my desired field of study. This project is similar to an essay I wrote before because that essay also required me to use an interview as a source. In addition to the interview, I have to read and analyze six writings in my chosen profession. The writings must be split up into 3 academic and 3 non-academic writings. The assignment then wants me to write a synthesized Analytical Report using the writings and interview as evidence. Overall, Assignment 1 is just like the research papers I did in high school. This is similar to the research papers because I have to essentially do some research in my desired field of study. In the past I have done research similar to this. 

Questions:

1. How long should the interview be?

2.  Does the interview have to be face to face or can it be over a phone call?

3.  Who Is my audience?