Question

You have a group of 10 people being compared to a known population with a mean of 20 and a variance of 5. What is the mean of the distribution of means? O 25 20 02

Answer 1

Solution:

Given in the question

Group sample size = 10

Population mean ($\mu$) = 20

Population variance ($\sigma$^2) = 5

So mean of the distribution of sample mean can be same as the population mean so

Mean of distribution of sample mean = Population mean ($\mu$) = 20

So it's correct answer is B.i.e. 20