Relationship between distribution of sample means and normal

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2. A population has a µ = 60 and σ = 10. A sampling distribution from that population, based on samples of n = 64, will have a M of ________ and a standard error of ___________.

3. Explain the relationship between distribution of sample means and normality-that is, under what circumstances is the distribution of sample means normal?

4. A sample of n = 81 scores is selected from a population with μ = 60 and σ = 9. On average, how much error is expected between the sample mean and the population mean?

5. A random sample of n = 25 scores is selected from a population. Based on this information alone, do I know that the distribution of samples means will be normal? Why or why not?

6. All samples of size n = 49 are selected from a population with μ = 40 with σ = 12. What is the average (mean) of the distribution of sample means? (this is not a trick, it is a very simple question!)

Reference no: EM132844877

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