Would we need a work cited page for all our source in the written tech report?
Yes, we have to cite ALL data sets that we use, and also the codes that we copied online. I think we might also have to cite VADER for Task 3.
I agree -- all the sources you used should be cited!
(I won't be picky about citation format -- APA/MLA/whatever -- as long as you clearly provide information about your sources.)