Question: 1.Question 5.8 - A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitter. The standard

1.Question 5.8 - A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitter. The standard error for this estimate was 2.4%, and a normal distribution may be used to model the sample proportion. You will construct a 99% CI.

(1) what is z* for a 99% CI?

2.Construct a 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter. Note: Write in the (30.2%, 31.5%) format: the left number is the lower bound and the right is the upper bound; separated by a single comma and space; enclosed in parentheses.

3.Interpret the confidence interval in context, using the stastically appropriate phrasing we discussed in class.

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