find out standard error of mean and make an inference about the accuracy of the mean by analyzing problem in Statistics for Business and Economics.
Suppose a random sample of n = 25 measurements is selected from a population with mean μ and standard deviation σ. For each of the following values of μ and σ, give the values of μx¯ and σx¯.
a. μ = 10, σ = 3
b. μ = 100, σ = 25
c. μ = 20, σ = 40
d. μ = 10, σ = 100