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Exit Polls Midday Numbers Margin of Error
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Exit Polls Midday Numbers Margin of Error

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Questions and Answers

When using simple random sampling, what is the main method of selecting a sample?

  • Choosing randomly without any specific pattern (correct)
  • Selecting based on a specific order
  • Dividing the population into strata
  • Selecting based on an identifiable characteristic

    • In stratified random sampling, how are samples selected within each stratum?

  • Selecting randomly within each stratum (correct)
  • Using a predetermined list
  • Based on alphabetical order
  • Choosing based on demographics

    • What is the purpose of dividing a sampling frame into strata in stratified random sampling?

  • To create a predetermined list of samples
  • To ensure all samples are selected alphabetically
  • To account for different characteristics in the population (correct)
  • To simplify the selection process

    • According to the guideline provided, when determining sample size, what factor should be considered?

    <p>Time and resources available</p> Signup and view all the answers

    What is the main purpose of exit polls conducted by media during election years?

    <p>To predict election outcomes</p> Signup and view all the answers

    In the context of polling places, what does an exit poll primarily focus on?

    <p>Demographic information of voters</p> Signup and view all the answers

    How do stratified random samples differ from simple random samples?

    <p>Stratified samples have different strata with specific characteristics</p> Signup and view all the answers

    What characteristic is used to create strata in stratified random sampling?

    <p>$\text{Class year}$ of individuals</p> Signup and view all the answers

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