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What is a confidence interval

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Reference no: EM133040461

Write an essay that addresses the following: During elections, such as the presidential election, election forecasters will typically use exit polls to try to predict the outcome of the presidential election. We might hear that a candidate's lead is "outside the margin of error" or there is a "statistical tie". What does this mean?

In your answer, be sure to include the following:

  • What is a confidence interval?
  • What is margin of error?
  • How do confidence intervals help us estimate a population parameters?
  • In a 95% confidence interval, what does the 95% refer to?
  • Provide an example to explain what a statistical tie is.
  • Provide an example to explain what a means to have a lead outside the margin of error.
  • Why is it dangerous to make predictions "within the margin of error"?

Reference no: EM133040461

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