Question

For a population with µ = 60 and σ = 20, the distribution of sample means based on n = 25 will have an expected value of ____ and a standard error of ____.​

 

Answer 1

Solution :

Given that,

The sampling distribution of mean is ,

= 60

The sampling distribution of standard deviation is ,  

= / n = 20 / 25 = 20 / 5 = 4

The distribution of sample means based on n = 25 will have an expected value of 60 and a

standard error of 4 .