Hello, could you please help me with this two part problem? Thank you! A random variable is normally distributed. It has a mean of 249 and a standard deviation of 22. If you take a sample of size 13, can you say what the shape of the sampling distribution for the sample mean is? For a sample of size 13, state the mean of the sample mean and the standard deviation of the sample mean. Round to two decimal places if necessary.μx̄ = σx̄ = For a sample of size 13, find the probability that the sample mean is more than 245.P(x̄ > 245) = If you take a sample of size 40, can you say what the shape of the distribution of the sample mean is? For a sample of size 40, state the mean of the sample mean and the standard deviation of the sample mean. Round to two decimal places if necessary.μx̄ = σx̄ = For a sample of size 40, find the probability that the sample mean is more than 245.P(x̄ > 245) =
Hello, could you please help me with this two part problem? Thank you!
A random variable is
If you take a
For a sample of size 13, state the mean of the sample mean and the standard deviation of the sample mean. Round to two decimal places if necessary.
μx̄ =
σx̄ =
For a sample of size 13, find the
P(x̄ > 245) =
If you take a sample of size 40, can you say what the shape of the distribution of the sample mean is?
For a sample of size 40, state the mean of the sample mean and the standard deviation of the sample mean. Round to two decimal places if necessary.
μx̄ =
σx̄ =
For a sample of size 40, find the probability that the sample mean is more than 245.P(x̄ > 245) =
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