Data Set 1 in Appendix B Biostatistics for the Biological an

Data Set 1 in Appendix B (Biostatistics for the Biological and Health Sciences, Triola 1st edition) includes a sample of measured cholesterol levels (in mg/dL) for 40 randomly selected women. The mean of the 40 cholesterol values is 240.9 mg/dL. The value of 240.9 mg/dL is one value that is part of a sampling distribution. Describe that sampling distribution.

Solution

According to the Central Limit Theorem (CLT)
The sampling distribution will be
1) Normally distributed with
2) Mean = 240.9
3) standard devation = sigma-of-original-distribution / sqrt(4)

See reference 1 for the statement of the CLT
See reference 2 for stuff that moves on your screen
See reference 3 to try the CLT out for yourself.

Source(s):http://davidmlane.com/hyperstat/A14043.h...

CLT in action: http://www.statisticalengineering.com/ce...

http://www.chem.uoa.gr/applets/AppletCen...