How did you use your cell phone? A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the past 30 days they had used their phone while in a store to call a friend or family member for advice about a purchase they were considering. The poll surveyed 1003 adults living in the United States by telephone. Of these, 462 responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering

Are the guidelines for a "sufficiently large sample" met for question?

No, since less than 1000 students were surveyed.

Yes, since there were at least 10 students who responded "YES" and at least 10 who responded "NO".

Yes, since more than 40 people were surveyed.

No, since less than half the students responded "YES".