A bottled water company bottles varying sizes of water, from B-ounce to 1-gallon containers. The company has determined that the mean quantity in their 20-ounce bottles is 20.8 ounces with a standard deviation of 0.6 ounces.
The bottling plant manager believes his machines are overfilling the bottles. A random sample of 30 bottles is taken,
and the mean number of ounces of water is determined to be 20.9. Under the assumption that the true mean
Ounces of water is 20.8, 100 simulated means for samples of size 30 are shown in the dotplot.