couple of questions i have for this problem.

In a survey conducted by the marketing agency 11Mark, 241 of 1000 adults 19 years or age or older confessed to bringing and using their cell phone every trip to the bathroom (confession included texting and answering the phone.

1. What is the Sample of study? ( would it be the 1000 adults?)
2. what is the Population of Interest? ( Im assuming its the 241 out of 1000 adults) is that correct?
3. Is this study qualitative or quantitative? ( I believe this to be Quantitative for its a survey)
4. is there a variable of study?
5. What would a point estimate for the proportion of 19 year old and older in age who take their cellphone into the bathroom?
6. How do could i explain the point estimate in question 5 in a statistic? could i go about this as a random variable if i do how do i go about explaining the source of variability in the random variable?
7. what is the easiest way to interpret a 95% confidence interval for the population proportion of adults 19 years of age or older that bring cellphones to the bathroom?
8. and to insure the results of this study what are representative of all the adults 19 years of age or older?