Weakness: We had non-response bias in our test because a number of tests were never sent back to us.   Also, perhaps some students took into account half bathrooms while others rounded up or down.  We also feel that some students may have not taken the survey seriously because we received "I don't know" and other non-numerical answers that we couldn't take into account.

Extrapolate:  We feel that we can extrapolate the data to a larger number of students.  If possible, we would be able to extrapolate the data to all of North Olmsted residents, not just high school students, and maybe the entire state of Ohio.

Suggestions: Our suggestions would have to be taking a larger sample or even extending the survey throughout other cities in Ohio.  Another suggestion could be requiring the survey to be turned back in.