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Confidence interval for the fraction

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Reference no: EM131153342

Twitter users and news, Part I:  A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard error for this estimate was 2.4%, and a normal distribution may be used to model the sample proportion. Construct a 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter, and interpret the confidence interval in context.

(please round all percentages to 2 decimal places)

The 99% confidence interval is ( %, %)

Interpret the meaning of your confidence interval:

  • There is a 99% probability that the proportion of U.S. adult twitter users who get some news on Twitter is within our confidence interval
  • We are 99% confident that the true proportion of U.S. adult twitter users who get some news on witter is within our confidence interval
  • 99% of confidence intervals will be contain the correct sample proportion of U.S. adult twitter users who get some news on Twitter

Reference no: EM131153342

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