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Sampling Distribution of Sample Means
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Sampling Distribution of Sample Means

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Questions and Answers

What is the relationship between the mean of the sample means (μ_x ̅) and the population mean µ?

  • μ_x Ì… is always greater than µ
  • μ_x Ì… has no relation to µ
  • μ_x Ì… is equal to µ (correct)
  • μ_x Ì… is always less than µ

    • What is the formula to calculate the standard error of the sample mean (σ_x Ì…)?

  • σ/√(n+1)
  • σ/√n (correct)
  • σn
  • σ/√(n-1)

    • What is the variance of the distribution of all sample means?

  • σ/√n
  • σ^2/n (correct)
  • σ^2
  • σ^2*n

    • What is the shape of the sampling distribution of the mean of all samples of size n selected from a normal variable X?

    <p>Normal</p> Signup and view all the answers

    What is the mean of the sampling distribution of the mean of all samples of size n selected from a normal variable X?

    <p>μ</p> Signup and view all the answers

    What is the variance of the sampling distribution of the mean of all samples of size n selected from a normal variable X?

    <p>σ^2/n</p> Signup and view all the answers

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