A large number of simple random samples of size n = 85 are obtained from a large population of birth weights having a mean of 3420 g and a standard deviation of 495 g. The sample mean is calculated for each sample.
A) What is the approximate shape of the distribution of the sample means?
B) Determine the expected mean and the expected standard deviation of the sample means.
Please see the attachment.
Sample mean and standard deviation
A large number of simple random samples of size n = 85 are obtained from a large population of birth ...
The solution provides step by step method for the calculation of mean and standard deviation of sampling distribution of sample means. Formula for the calculation is also included.