More than $35.41\%$ of all adults who own televisions use their televisions to watch nature shows.

Between $28.59\%$ and $35.41\%$ of all adults who own televisions use their televisions to watch nature shows. 

Since the sample included adults who own televisions and not just those who use their televisions to watch nature shows, no conclusion can be made.

Since the sample did not include all the people who watch nature shows, no conclusion can be made.