Write a paragraph to your coworker explaining why you take 3

Write a paragraph to your coworker explaining why you take 3 samples of size 5 and find the mean of each sample instead of randomly choosing and measuring the amounts in 15 vials individually to check the machine’s setting.

Solution

1.A sample mean is the mean of the statistical samples while a population mean is the mean of the total population.
2.The sample mean provides an estimate of the population mean.
3.A sample mean is more manageable data while a population mean is difficult to calculate.
4.The sample mean increases its accuracy to the population mean with the increased number of observations.

so due to above reson we use samples instead of taking the whole population