a sample of 500 people were asked to identify theor major source of news information. 150...

a sample of 500 people were asked to identify theor major source of news information. 150 stated that their major source was television nes coverage.

a) construct a 99% confidence interval for the percentage of people in the population who ocnsider television news as their major source.

b) based on the result from part a, complete the statement to be included in a newspaper article: "based on a poll of 500 randomly selected people, we estimate that ---% of the population consider television news as their major source. the margin of error is --+/- %".

c) how large a sample would be necessary to estimate the population proportion with a maximum sampling error of 5% and a 99% confidence level?

Expert Solution

orchestra answered 2 years ago

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