The power of TV

Students were asked:

When you want to increase your knowledge about current world events, which method do you most prefer?

47.4% of all respondents preferred television. Next most popular medium was the newspaper, preferred by 17% of all respondents. 10% of respondents preferred the internet.

All response percentages:

So what about just Year 8 girls compared to Year 12 girls - does the preferred medium change as girls age? Use the sampler to sample from the population and estimate the parameters.