Population Mean Estimation Quiz
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Questions and Answers

What happens to the error in the estimation of population mean when 'n' is increased?

  • The error decreases, providing a worse estimate.
  • The error decreases, providing a better estimate. (correct)
  • The error increases, providing a better estimate.
  • The error increases, providing a worse estimate.

    • What effect does a high population variance have on the estimation error?

  • The error becomes unpredictable.
  • The error increases. (correct)
  • The error decreases.
  • The error remains the same.

    • What does the estimated interval of the population mean depend on?

  • The population standard deviation, $\sigma$. (correct)
  • The sample mean, $\bar{x}$.
  • The population variance, $\sigma^2$.
  • The sample size, 'n'.

    • When the population variance is unknown, how is it typically estimated?

    <p>Using the sample variance.</p> Signup and view all the answers

    What type of interval estimation is obtained when the error is distributed on only one side?

    <p>One-sided confidence interval.</p> Signup and view all the answers

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