5. Sampling Distributions
Sampling Distributions For Sample Means — Quiz
Test your understanding of sampling distributions for sample means with 5 practice questions.
Practice Questions
Question 1
What is a sampling distribution of a sample mean?
Question 2
If a population has mean $\mu = 50$, what is the mean of the sampling distribution of $\bar{x}$ for samples of size $n$?
Question 3
A population has standard deviation $\sigma = 12$. If samples of size $n = 9$ are taken, what is the standard deviation of the sampling distribution of $\bar{x}$?
Question 4
Why does the sampling distribution of $\bar{x}$ usually become more nearly normal as the sample size increases?
Question 5
A population has mean $\mu = 100$ and standard deviation $\sigma = 20$. For samples of size $n = 25$, what is the standard deviation of $\bar{x}$?