I was thinking about your poll. Your results may be skewed due to lack of anonymity. Because people can see one another's answers they may
1. not give an honest answer (embarrassed)
2. change their mind based on other people's answers (herd mentality)
Something you may want to include in the summary and conclusion of your report.
Also, a friend of mine is a Ph.D. Sociologist specializing in violent crime rates based on sex... he and I have never agreed on this subject (mostly because I think his techniques are flawed)... His research (6 years ago) has demonstrated that females do not commit violent crime at any significant level. Just thought that might be of interest.
If the report is for a marketing/business type class... it doesn't really matter. If the report is for a science class, there is a trick to writing research papers that I was taught in grade school that didn't make sense to me until much later.
In the conclusion of the paper, after you have presented your findings you need to do two things: beg for more money and damage control. Researchers are dependent on performing these projects for money; if they have submitted the paper, the project is over, and so is the job; it is important to explain why this research is well done (so people think you're cool and will hire you for a new job) and that it hints at new things that should be explored (suggesting what that new job should be). Remember that no project is perfect, therefore it is important to perform damage control at the end. Other people will be looking for your job, will find your mistakes, and will call you out on them. Much better you identify your own mistakes and put the proper spin on it (time/money constraints made me do it, therefore give me another job and more money and we will do better next time).
Modern researchers publicly say that they add these things so that "so that their work is complete as possible, and so future researchers can continue the work". They always want to be that "future researcher".
This is a short version of what was told to me when I was 13. It didn't make sense until I was 28. I hope you make sense of it sooner.
In the case of your paper,
1. mention both polls (and give the results of both)
2. Mention why you abandoned the first poll.
3. Only use the results of the anonymous poll.
4. In the conclusion, mention any differences between the polls and why they suggest a further study