A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a standard deviation of 2. If you take a sample of size 12, can you say what the shape of the sampling distribution for the sample mean is? Why? If the sample size is 12, then you can say the sampling distribution of the sample mean is not normally distributed since the sample size is less than 30. If the sample size is 12, then you can't say
A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a standard deviation of 2. If you take a sample of size 12, can you say what the shape of the sampling distribution for the sample mean is? Why? If the sample size is 12, then you can say the sampling distribution of the sample mean is not normally distributed since the sample size is less than 30. If the sample size is 12, then you can't say
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A random variable is not
If you take a sample of size 12, can you say what the shape of the sampling distribution for the sample mean is? Why?
- If the
sample size is 12, then you can say the sampling distribution of the sample mean is not normally distributed since the sample size is less than 30. - If the sample size is 12, then you can't say anything about the sampling distribution of the sample mean, since the population of the random variable is not normally distributed and the sample size is less than 30.
- If the sample size is 12, then you can say the sampling distribution of the sample mean is normally distributed since the sample size is less than 30.
For a sample of size 12, state the mean of the sample mean and the standard deviation of the sample mean. Round to two decimal places if necessary.
μx̄ =
σx̄ =
If you take a sample of size 36, can you say what the shape of the distribution of the sample mean is? Why?
- If the sample size is 36, then you can say the sampling distribution of the sample mean is not normally distributed since the sample size is greater than 30.
- If the sample size is 36, then you can say the sampling distribution of the sample mean is normally distributed since the sample size is greater than 30.
- If the sample size is 36, then you can't say anything about the sampling distribution of the sample mean, since the population of the random variable is not normally distributed and the sample size is greater than 30.
For a sample of size 36, state the mean of the sample mean and the standard deviation of the sample mean. Round to two decimal places if necessary.
μx̄ =
σx̄ =
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